Proxmox windows 11 cpu. Continue and mount Mar 13, 2025 · Windows Server 2025 Core has much more than expected overhead. Proxmox server version : 7. x. 3-1 (running kernel: 4. Already I have 6. Along the way I encountered some obstacles. Running nice. 3. 18-11-pve) pve-manager Aug 1, 2024 · I am in the process of moving off of Proxmox and into FreeBSD 14. I'm also not excited about passing the host processor through - defeats one purpose of VMs - portability. Proxmox VE (Virtual Environment) is an open-source server virtualization management solution based on Debian Linux, providing powerful features such as KVM (Kernel-based Mar 6, 2025 · Hi, It looks like what you can not use at the same time AMD Nested Virtualization and GPU passthrough. Oct 9, 2024 · Hello DAE51D! This sounds really weird. Proxmox VE 8. If I set the CPU type to qemu64, windows boot normally. Oct 17, 2021 · Hello, The Common KVM processor is not supported by Windows 11. But my question is when to enable them and when to disable. My PVE node is single -> not a part of a cluster, therefore no need to migrate etc. 4 hosting a W11vm that working just fine on a x86-64-v2-AES processor type. animations go through like 2 frames, and I cant figure out why. The host itself CPU barely registers anything spiking to only 5% sometimes. Modifying the ISO and other kluges are my last resort. 1 Windows 11 23H2 shuts down as expected. Today, I downloaded a large file and noticed on my Proxmox Overview screen that the CPU usage for Windows was 48% AND Proxmox was at 47% (95% CPU utilization) and Jul 11, 2025 · After my PC finished installing Proxmox, I switched to another system to access the PVE web UI. Today, I brought up a new Win 11 Pro, and, yep, got the 'CPU unsupported' when attempting an update to KB5022287 (2023-01 Cumulative). Feb 16, 2019 · Hi there, I've been searching for a week and can't find the answer. Intel 13th gen CPU, NVIDIA GPU Aug 9, 2021 · Running proxmox on poweredge r720 server 2x xeon 2650 and 256gb ddr3 ecc. 20GHz (2 Sockets) No matter how I tried to configure a VM with Windows 11, I always get an extremely slow machine. 4 Darauf läuft eine Windows 11 VM (8 Cores, 16Gb RAM). I have tried using different remote desktop applications, and still same story. The new post is fully updated for Proxmox 8. Nov 22, 2024 · Here’s my setup: CPU: i5-13600K (6 P-cores, 8 E-cores, 20 threads) Proxmox CPU Type: host Assigned vCPUs: 8 My questions: If I set CPU affinity to cores 0-13 (all p&e cores) or 0-18 (all threads except for one) and assign vCPUs (14 or 19 accordingly) with the CPU type as host, will the Windows VM recognize and efficiently utilize Jan 22, 2024 · Now's the time to cut off the Internet. Trying to install a windows 11 vm. Dec 13, 2024 · How much memory does your proxmox host have, What happens if you reduce the win 11 machne memory doen to 4 Gig Does the host freeze when the windows 11 machine is not running. For Linux® systems, you can view the boot log by typing 'dmesg' into the terminal. Until I decided to write this post and I tried to get all the information that could be Jul 9, 2024 · * Proxmox VE 8. I was very happy with the performance "much better than running Windows as a host". 2/POPCNT?). Nov 27, 2024 · A “Common KVM Processor” is a generic CPU model used in virtual machines (VMs) running on Kernel-based Virtual Machine (KVM) hypervisors, like Proxmox. I think you want to disable the "use tablet as pointer" option in Proxmox. It means that QEMU is running with the support of the virtualization processor extensions, via the Linux KVM module. Jul 18, 2024 · When you create a VM in Proxmox it gives you a bunch of options for what CPU to emulate. The release notes said the default CPU type of the new VM is X86-64-v2-AES. There are quite a lot of similar reports on that issue in this and other forums. Mar 12, 2012 · Hi there, I'm aware of the extra cpu flags of a virtual machine. Proxmox VE can use local storage like (DAS), SAN, NAS, as well as shared, and distributed storage (Ceph). That said, Microsoft’s flagship OS is a bit more complex to Jan 6, 2024 · I would like to test Windows 10 to 11 upgrades on VMs running a Proxmox host that has an unsupported CPU. Assuming that nothing as such May 11, 2019 · For several months, I have a VM running Windows 11 Pro with no issues with installation and upgrades. Has anyone done Dec 10, 2011 · I've been running several windows VM in proxmox for long time and I've just realized today that setting CPU type to `host` it really makes a big difference May 11, 2019 · Happy Friday all! I've been running Windows 11 on Proxmox ever since it was available and had no issues until the last 2 months. Apr 3, 2021 · Dear all, after updating VM guest to Windows 11 Pro 24H2 and changing some settings, the host (Xeon E3-1230 v3) had a 100 % load on all cores assigned to the VM. This PC doesn’t currently meet Windows 11 system requirements. What is the actual issue observed? From what I've read ballooning is slower on Windows. Unlike other virtual machines, Proxmox requires two ISO files for a Windows 11 virtual machine: one Oct 23, 2024 · This blog will explore several tips and best practices to optimize Windows VM performance on Proxmox, helping you get the most out of your virtualized environment. 2 I defined VM with pc-q35-7. 1, re-wrote every section, and added a lot more content driven by user feedback. There is no document or solution from Proxmox to Cannot get nested virtualization/WSL to work in Windows 11. Recommended Hardware Intel 64 or AMD64 with Intel VT/AMD-V CPU flag. Triend numerous CPU configs, even host, but all of them show the Download Windows 11 VirtIO driver, and upload to Proxmox as an iso image. I pass through it via proxmox, set cpu type to Host, then started vm. I am testing Windows Server 2025 Core (and Desktop) on Proxmox 8. There's a zillion options for various small differences in Intel and AMD… Jun 17, 2020 · Hi everyone, we have multiple Windows 11 VMs on different PVE's with sometime 100% CPU load after hours of inactivity. 0 and an 8GB RAM / 2-core config. (as far as I can remember removing the GPU doesn’t help Feb 6, 2023 · Unlock the full potential of your Proxmox VMs with this one simple setting. How to Install Proxmox on Windows 11 Proxmox Virtual Environment (VE) is an open-source server management platform that enables users to create and manage virtual machines (VMs) and containers. All on AMD Epyc 96xx Aug 1, 2022 · So, simply remove "hidden=1" in the CPU section of your config file, and you should notice an improvement in the performance of your virtualized Windows 11 environment, especially when running high-demand applications and games. Nov 22, 2024 · I just installed Windows 11 from a Win11 24H2 iso image. I've read Feb 1, 2023 · On Proxmox VE Community 5. May 24, 2024 · In January/February I bought rx6400 and swap it and do update proxmox/vms and issue come to these two gpu. Make sure to install the correct drivers for Windows 11. All I have in logs: proxmox kernel: kvm_amd: kvm [2955]: vcpu0, guest rIP: 0xfffff80e8093b475 Unhandled Dec 5, 2024 · Hello, I have multiple Windows 11 24H2 guests with virtio-win-0. I have some instances at NetCup (Hoster using KVM), same issues but with the disadvantge that i cant play with host/cpu settings. Oct 28, 2021 · Hallo, wenn ich in Optionen/OS Typ Windows 11 auswähle und eine neue Installation durchführe, wird Windows 11 installiert. The right choice is probably "Host" if you're not using Proxmox' machine migration features. If we need, we can run another virtual machine along side the Windows 11 and run at the same time. Windows 11 - what is the difference between using 1 socket 4 cores vs 2 sockets 2 cores Jan 7, 2024 · Hi Guys, Just setup fresh host with PVE8. This is directly linked to a VirtIO driver that has to be installed for it to work effectively. Just for information I tried to install a windows vm on Vmware ESXI 8 with GPU Passthrough and i didn't encountered this issue. It got initially installed with "host" cpu type, but I've tried "x86-64-v2-AES". I try with multi conf to have the better performance but i haven't solved the issue. Introduction This is a set of best practices to follow when installing a Windows Server 2022 guest on a Proxmox VE server 8. Also bear in mind the need for a Secure Boot BIOS/UEFI setting. Habt ihr Tipps für mich? :) Introduction This is a set of best practices to follow when installing a Windows Server 2025 guest on a Proxmox VE server 8. I just read a report that this Windows update will enforce new processor instruction sets (SSE4. In the context of Proxmox VE QEMU and KVM can be used interchangeably, as QEMU in Proxmox VE will always try to load the KVM module. I believe that the necessary Proxmox configurations are set correctly and the VM guest CPU is set to host The physical CPU is 16 x AMD Ryzen 7 8845HS w/ Radeon 780M Graphics (1 Socket) An Internet search says that this CPU does support nested virtalization. Dec 13, 2021 · I recently ordered an EPYC server where I've installed the latest proxmox version and added a Windows 11 VM. The installer runs but then after the installation is complete and the os reboots, then the VM just keeps boot looping saying "bdsdxe: starting starting boot 0009 windows bootmanager Nov 23, 2023 · I had to change CPU to default, start windows, shutdown Windows, change CPU, start windows and it works until next restart. But in general you need to check the minimum requirements for Windows 11, such as TPM, RAM & CPU. Continue and mount Jun 13, 2024 · Short version: Anyone changed CPU type on a Windows 11 VM and know how to get it to stop crashing? Long version: I set up a Windows 11 VM in VE 8. Sep 24, 2023 · For months (since installation really) I had both my servers on Proxmox v7 with one Windows11 VM each. 11-4 (2023-11-20T10:19Z May 9, 2024 · Today 2024-07-17, i have faced this problem in months from latest kernel, the windows 11 auto boot in the loop for automatic repair. But when I Mar 10, 2025 · but it's terrible i just booted windows and cpu usage is like 50% will send configs (windows vm) and proxmox so you can see hardware/allocation later when im home opening browser takes forever, doing anthing takes forever feels like intel pentium please let me know what i could adjust/send here Aug 18, 2020 · I notice that, even if I set all my CPU governor to powersaving with default intel_pstate drive, still the CPU gets up to maximum frequency as soon as VM started even it is almost idle in VM. The goal is to reduce memory usage in VMs if the host goes over 80% (by default) RAM usage. It appears that the new default processor type x86-64-v2-AES will not work for Windows 11 VMs on proxmox 8. 2 * Windows 11 Pro enterprise guest (up to date) * i7-8750H Coffee Lake I can see my host CPU in guest task manager, it also says virtualization is enabled: Here is my conf: agent: 1 bios: ovmf boot: order=ide0;ide2;net0 cores: 4 cpu: host,hidden=1 args: -cpu Feb 24, 2025 · Hi, I’m unable to install Windows 11 on a freshly installed Proxmox 8. Is there a specific CPU type that I can use for these VMs so that even though the host CPU is unsupported the guest would see the virtual processor as supported? May 5, 2025 · In this tutorial, we will look at how to install Windows 11 on Proxmox. I have 1 migrated W11 VM, and 1 Mar 6, 2024 · After configuring Proxmox to passthrough the Radeon 680M iGPU of the Ryzen 7735HS CPU, Windows 11 did not have a driver for the adapter. Proxmox machine all full update at 23/01/2025 Here is the proxmox/harware infos : VM Configuration ( all drive on physical SSD as proxmox ) agent: 1 balloon: 0 bios: ovmf boot: cores: 8 May 8, 2023 · Hi, I have to change the CPU on my win11 vm due to the installation of Photoshop 24. After restart I got the blue screen with a message indicating "Unsupported CPU". I tried "host" which leads to the Windows bluescreen. May 14, 2020 · I noticed that PVE automatically selects 'x86-64-v2-AES' as the CPU type for a Win11 VM, so I set one of the 22h2 VMs to that same CPU type, rebooted, double-checked that the right CPU was in the Device Manager, but still no dice - Windows Updates won't budge. Aug 28, 2022 · Though I don't understand why it says pve-kernel-5. Now the VM will hang with 100% CPU usage and becomes unusable -- this I have created a windows 11 virtual machine inside of proxmox, and its just really laggy for some reason. I followed the official nested vm guide perfectly, but it doesn't work. I’ve followed multiple guides, but I never manage to reach the Windows installation screen. 4 on macOS 15. It stuck on boot, causing cpu Apr 6, 2025 · I'm therefore exploring whether I can run Windows 11 on a bare metal hypervisor (e. I managed to solve the issue as follows: Turn off Dec 24, 2022 · Hello, For some reason i cannot get a number of my windows 11 pro vm updated to 24H2. 1 Installed a Windows 11 VM with all drivers installed. For example a 4 core KVM instance will go up to about 75% CPU usage when watching a single video via Google chrome at 480p. When you do so, you will get VM crash, and 'guest-panicked' icon in UI. The 2x bare metal computers are snappy and HIGHLY responsive. My tinkering with the configuration spanned between cpu type, numa 0/1, windows 11/10 VM type, etc. As for windows, it would be best to use a version of windows with no bloat, like tinier11, to minimize the OS garbage that gets installed with it. The host is on a Dell… Sep 20, 2023 · Hello, I have a Dell workstation T5610 "it has a dual CPU", two weeks ago, I installed Proxmox 8, and then I installed a few containers, Windows 11 with a GPU passthrough. After that I reinstaleed/tryied everykind of config in BIOS, grub, vm config etc. Following the installation detail: proxmox-ve: 5. The 2x VMs struggle just You may sometimes encounter the term KVM (Kernel-based Virtual Machine). 0 and how to configure it for vGPU with Windows 11 Pro. " Windows 11 is installed on a NUC8i5 under Proxmox using a pooled Network adapter and sharing a single M. 7. 171 yesterday, thinking that the issue would go away - nope) Host specs: i7-13700, 128gb 2666 mhz, Intel's integrated CPU is being passthrough to another linux VM (and there are no issues), RTX 4080 (I can post more specs Mar 31, 2024 · You don't provide your config/settings VM info. With careful hardware selection, patience for GPU passthrough, and the right remote access tools, users can achieve a desktop experience that is, for most use cases, indistinguishable from bare metal. 1: Windows 11 vGPU (VT-d) Apr 11, 2025 · I changed the pve-kernel a lot of times it didn't change anything. I install a new win11 VM. 1. Nutze am besten den CPU Typ host. This setup enables professionals to create sandboxed environments for threat analysis while maintaining hardware efficiency. Mar 22, 2024 · In Windows, you'll need to start your computer in safe mode and then look for the ntbtlog. From the looks of it, the flags exist to mitigate various CPU-level attacks. 0 chip emulation. Dec 6, 2023 · 我也看到了这一点——但对我来说，这似乎是一条线 CPU：主机，隐藏=1 我必须使用 x86-64-v2-AES 的 CPU 类型 - 但这似乎将机器识别为 Windows 的 VM。 我运行的是较旧的 AMD Ryzen 7 2700 CPU——不是 Intel，所以这可能有点不同——但似乎与 Windows 和 CPU 功能识别有关。 Aug 9, 2015 · I see this on Proxmox with 2025 and 11. It tightly Aug 3, 2019 · I have Proxmox 8. I can run games, furmark etc. Oct 14, 2023 · Once Windows Update finished, I discovered the entire host crashes. I am trying to set the CPU type to host but windows 11 stuck and get into automatic repair screen. 266 drivers installed, and QEMU agents. 4 running on a Dell PowerEdge R715 (16 x AMD Opteron(tm) Processor 6128 (2 Sockets)). Processor is an Intel Xeon 4208 (IIRC). 0-13 including TPM 2. Mar 1, 2022 · For me it was PVE 8. S. Is there any process that consumes 100% Aug 8, 2023 · Here are the top line facts: I have i915 vGPU working on my host. Intel 13th gen cpu, proxmox 8 Apr 9, 2023 · I've totally revamped the blog post I wrote in June using Proxmox 8. Aug 30, 2023 · When I enable wsl2 through windows platform, win11 vm immediately starts to boot into advanced recovery console. Install Prepare To obtain a good level of performance, we will install the Windows VirtIO Drivers during the Windows installation. 2. 0 enabled, will I be able to use BitLocker? Are there any common gotcha's I should be aware of? Dec 6, 2022 · However, my Windows 11 VM is seen as running by Proxmox but Windows fails to start, and I end up in the repair page every time. Recently I wanted to run a Bluestack Android emulator, but it complained that it's impossible to enable Hyper-V. System stopped responding CPU use went to 100% when using Host CPU. I have now obtained an HP tower server Nov 19, 2024 · Overview Because Windows 11 has some unique boot requirements, in this post I will describe how to setup a Windows 11 Pro virtual machine within Proxmox. Aug 22, 2019 · 4 So I am noticing my windows KVM guests (managed by proxmox) are showing extremely high CPU usage when doing really simple things like watching a video on youtube. I successfully set gpu passthrough, and I am able to run Nvidia GPU inside of Win11. It was set to single processor with 8 cores. it expects to run on physical hardware. If you’ve ever wondered whether running Windows 11 inside Aug 17, 2025 · Switching to 'host' CPU type in Proxmox can significantly enhance virtual machine performance by utilizing the full potential of your CPU. No performance issues (even with lower specs on the VM). Proxmox VE (Virtual Environment) is an open-source virtualization management platform that combines KVM virtualization Dec 18, 2014 · Hello, did anyone successfully update a Windows 10 VM to Windows 11? Is it possible if you just set the OS type to Windows 11/Server 2022 and add a TPM device? Any other actions required? Thanks and best regards Jul 10, 2023 · I have been having issues with regards to the CPU setting set to "host" on proxmox windows 11 vm. 15 (update: apt autoremove got rid of that) Windows 11 version: 10. It stuck on boot, causing cpu to reach 100% Aug 19, 2022 · Hi, I've got a Win11 VM that I'm unable to update. Fragen zu Proxmox im Allgemeinen oder Bedarf an Cluster Best Practices? Gern auch einmal direkt anschreiben oder mich auf diversen Veranstaltungen ansprechen. I can notice the slow down and the low response time of the server in this scenario. It was relatively easy to get up and running, and the UI is pretty straight forward. 4. I have tried a number of CPUs. Otherwise, did you configure anything special in the CPU advanced settings? I heard about some issues if Enable NUMA is enabled. I would like to run hyper-v but I can't do that if I don't set the However now i'm stuck as windows still says I don't meet the requirements, i'm almost certain this is due to my decade old (but still respectable power-wise) CPU, how could I go about getting it running without using hacks in windows it's self to workaround the requirements? Aug 12, 2023 · This means that Windows will not and cannot start CPU side channel vulnerability mitigation measures in these CPU types, and performance will not be affected. Jul 25, 2025 · I'm attempting to install Windows 11 on Proxmox VE 7. Will my W11 VM be able to use it? Best alternative cpu type? Sep 29, 2022 · As I read on this forum there are other people that have CPU usage issue on Windows11 VM. Since the September update, I was not been able to update Windows 11 for no obvious reason. 3-9 the process /sbin/zed keeps using one cpu core at 100% either with all the VMs stopped. Dec 13, 2021 · Same issue just happened after removing Hyper-V from Windows 11. This PC’s process doesn’t support a critical feature (PopCnt). GPU passthrough went very smoothly and my benchmarks so far show that the performance is almost identical to bare metal. 40GHz (1 Socket)” - a server migrated from ESXi would crash into a BSoD if I didn't use a virtual CPU type. To hopefully save other people some Jun 18, 2025 · He wrote that the latest updates for Windows 11 and Server 2025 were causing massive problems in virtual machines (VMs) when they were running under Proxmox. Up to now I was using default CPU type "kvm64" for this VM but the upgrade to Windows 11 - 22H2 was never listed in the updates. 1 cpu type host causing windows 11 to stuck on boot I am trying to setup proxmox to run windows vm that need to support nested virtualization and this is my first time using proxmox. We're not there yet. I set up the VM and I installed all the Virtio-win drivers and its still super sluggish. i have try many solutions but it is not fixed when the cpu type = host is given. CPU report in host show CPU boost up to 4Ghz for all cores. Mein Hauptverwendungszweck sind virtuelle Maschinen mit Windows 10 und 11. So don't think it's an internal cpu problem. Nov 24, 2021 · I am trying to get a Windows 10 guest to upgrade to Windows 11 and keeps failing on the stupid CPU check. 240 (Got updated from 0. I've configured multiple windows 11 vms on esxi and they just work. Oct 12, 2021 · Proxmox is running on a server with a CPU which is not "compatible" with Windows 11 (Xeon E5-1650v3). It showed up as 2 Microsoft Basic Display Adapters in Device Manager. This enables multiple VMs on the same Proxmox host share the GPU via virtual functions (VFs). CPU temperature reported at about 50c. The VM boots fine when I choose QEMU64 or KVM64 as CPU, but that comes with a big performance penalty and some programs crash on the VM when not using host. Nov 5, 2024 · We install Windows 11 24H2 in a virtual machine (VM) on Proxmox VE. I just upgrade my Proxmox VE to the latest v8. If you just create a VM on Proxmox without further customization, then the task manager inside Windows 11 would show the CPU as KVM CPU and refuse to start. Just changing the processor causes the W11 VM to bluescreen or not even boot. Everything was running Proxmox VE supports clustering, this means that multiple Proxmox VE installations can be centrally managed thanks to the integrated cluster functionality. Both VMs are installed with the qemu agent (9th Jan 2023 release) and both using about 20-24% of CPU while idle. For a while now I am just trying to install a Windows 11 VM without any tweak like GPU Passthrough. I get the win11 VM working with VGPU at some point later on a reboot the Win11 machine goes into automatic repair (this seems to be time based, not due to windows updates, not installing anything, not May 27, 2024 · after installing this update on windows 11, vms fail on start with BSOD unsupported processor, using "host" as cpu type, walkaround changing to "x86-64-v4", does anyone having the same issue? Dec 6, 2023 · I just finished migrating my Windows 11 gaming VM from Unraid to Proxmox. 1. Still no difference. 3-6, using a verified ISO directly from Microsoft (SHA256 checked). I would turn off the win 11 machine, Install a linux vm with 4 gig of ram, run that and see how it goes. This generic model ensures compatibility and stability across different hardware platforms, but it does not leverage the advanced features (and often even the common features) of the host CPU. Everything went fine until Windows Update installed "2025-06 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5063060)". Jan 23, 2025 · Hi, Installed successfully Windows 11 official iso under proxmox but i am facing huge CPU usage. On promox 8. One of them started the update via windows updates but stopped and i get the same when trying to update via the setup. I have, however, run into an issue with easy anti cheat. It seemed to me a Windows-specific issue, but then after some Mar 16, 2024 · The VM cpu is showing only 40 to 50% max when trying to play videos. Here's my setup: Proxmox VE 7. CPU seen from the Proxmox side, not via task manager. Digging a little deeper, i noticed that when issuing any shutdown command on this client, the proxmox host suddenly shoots to 100% CPU. This week I performed in order: Apr 23, 2025 · Windows 11 can run fairly smoothly in a Proxmox VM, and while setup can be a bit of a pain for a first-timer like me, this is definitely usable if you need to run some workloads in Windows remotely. The problem is the ballooning feature, AKA dynamic memory. Dec 3, 2023 · I'm trying to get a Windows 11 gaming VM to work. Dec 1, 2020 · My Windows 11 22H2 host is running on an HP Proliant DL360 Gen10 with Intel Xeon Bronze 3104 CPU, which is supported on Windows 11. 2 and didn't notice the CPU type was set to x86-64-v2 instead of host. Oct 30, 2021 · Although I did see on the proxmox wiki that apparently windows does support cpu hot unplugging: "Note : Windows CPU hotplug has been working since qemu 2. What does a default setting mean? If a host cpu is patched should I enable i. System: Proxmox v8. The VM uses OVMF (UEFI) with TPM 2. I am not sure what to do next. iso May 16, 2022 · Hello, I've been trying to get PC Health Check to approve my Windows 10 VM for Windows 11 upgrade. Oct 25, 2021 · This guide will show you how to easily virtualize the new Windows 11 on Proxmox 7. Going back to KVM64 for now. Dec 15, 2023 · (Running a windows guest with VFIO and GPU Passthrough) Finally found a solution for me losing 20% in Cinebench R23 single-core on my Windows VM (compared to bare-metal), it being switching the CPU type from x86-64-v2 to host on my 7950X Proxmox host. On the VM all virt-io drivers have been installed and VBS has been explicitly disabled. 1 / bhyve for my home vm server. I have read everything I found and tried the proposed resolution but I couldn't fix the issue. 2 1 TB storage module among everything. Any advice? I run Windows 11 as vm inside of proxmox 8. All drivers are May 15, 2023 · That leaves proxmox with enough cpu power to handle the problem. Installing (for example) python took like 3 minutes. My current CPU type is kvm64. However, before you do, you need to issue a command that prevents Windows 11 from forcing you to have an Internet connection. Create a new VM, select "Microsoft Windows 11/2022/2025" as Guest OS and enable the "Qemu Agent" in the System tab. Windows needs additional drivers to support the Virtual Hard Disk used in Proxmox (VirtIO). Apr 29, 2023 · Hello everyone! I am having an issue with my windows 11 vm on proxmox. pcid or not? Or does the setting emulate a secure cpu? How does an other cpu type affect -use uefi bios -make sure your proxmox host is up to date pve Updates -enable hot plug for all devices -use the latest Virtio windows iso -you should have at least 3 boot devices: (ide0)Win11 installer iso, (ide1)Virtio for Windows iso, (scsi0) Virtual boot drive -cpu optimization settings in advanced hardware settings can create Aug 30, 2023 · Cannot get nested virtualization to work in Windows 11, running inside of proxmox 8. I've also got a couple of Windows Server 2019 running on the same Proxmox server without issues. The process to install Windows 11 on Proxmox is extremely similar to most other virtual machine installations on Proxmox, but since Windows 11 requires TPM, it’s slightly different. exe on the DVD. Photoshop requires SSE 4. I have allocated 8 cores of an i7 12700k, 32 gb of ram, and I have even passed through an rtx 2080 super. Why is my Windows 11 VM so slow?? I'm simply testing the UI via RDP between several machines (2x VMs and 2x bare metal computers). The host is running pve-manager/7. However, I would like to change the processor type to host or at least x86-64 v4 for the improved instruction set. 4 with a CPU “12 x Intel (R) Xeon (R) E-2236 CPU @ 3. Ein Upgrade funktioniert nicht, Windows 11- PC-Integritätsprüfung sagt, dass der Prozessor nicht kompatibel ist. Only what work is fresh windows with not updated gpu driver. I have ssd with windows 11 pre-installed. I had to try kvm64. Ich hatte jetzt ein bisschen getestet bezüglich der Einstellungen für die Nov 20, 2021 · I am trying to setup proxmox to run windows vm that need to support nested virtualization and this is my first time using proxmox. It provides important extra features over the qemu64/kvm64, and improves performance of many computing operations. I tried clean installations, different CPU, Graphic cards, tips, . Some how i came upon the task manager showing a speed of 0,81Ghz instead of the 3,4Ghz that the undelaying host has. . I use VirtIO drivers for disk (on local zfs filesystem), network and balloon. Jul 8, 2025 · How to Create a Windows 11 Virtual Machine on the Proxmox Virtualization Platform Creating a Windows 11 virtual machine (VM) on the Proxmox Virtualization Platform offers a flexible, efficient, and scalable way to run Windows 11 alongside other VMs on your server or desktop. Windows 11 mag die x86-64-v2-AES CPU nicht. 4; all EXT4 partitions. 1: Windows 11 vGPU (VT-d) Passthrough with Intel Alder Lake A number of the changes were in response to additional lessons learned on my part, and feedback in user comments. Images used: Win11_24H2_English_x64. Performance is very good accessing from my desktop over 1ghz LAN through remote desktop. 6 and CPU hot unplug has been working since qemu 2. 3 AMD Ryzen 5950x VGA & USB controller PCIe passthrough What I have checked: When adding Hyper-V in Windows features, it complains Proxmox VE supports clustering, this means that multiple Proxmox VE installations can be centrally managed thanks to the integrated cluster functionality. When I set the CPU to "host" it will use 95-100% of CPU usage constantly and cause the vm to be very slow and jittery. Mar 3, 2024 · Solution to Windows 11 requiring PopCnt on Proxomox using Qemu64 buy adding creating custom a custom CPU and adding additional feature flags. The only solution to return to normal CPU load is to restart the VM. Learn about the effects the CPU type has on performance, when it's safe to use it, and how to modify the setting either during VM creation or on existing VMs with this step-by-step guide. I have been running Windows 11 VMs on proxmox running on a Dell desktop PC with no issues for a few years. Vm can be fixed with Cpu type x86_64 but it is not fine when simulators or graphic Gpu required the host type to be working normal. Once the VirtIO drivers were installed Proxmox is no longer reporting weird memory issues. Any better options?… Sep 10, 2025 · Heck, you can even run the mighty Windows 11 on your Proxmox server – provided it’s not lacking on the performance front. e. There is a Introduction This is a set of best practices to follow when installing a Windows 11 guest on a Proxmox VE server 8. Oct 1, 2024 · Yes, I have enabled the Nested Virtualization as per the Proxmox documentation. Hyper-V is a type 1 hypervisor, i. It took me a little while to find all the right references to get GPU passthrough working but, after some tinkering, I seemingly had a Nov 30, 2011 · P. For better performance, you can configure the I can provide logs if needed - but my main question is - IS IT POSSIBLE to install Windows 11 on a Proxmox VM and not have it be unbearably slow? All the unix based OSes run flawlessly on my Proxmox, but windows I can't get to be even passable. So I Apr 1, 2013 · I'm setting up a Windows Server 2022 VM and noticed these flags. 22000 Virtio version: 0. 0. Proxmox Link This link will send you to Aug 16, 2025 · Windows 11 24H2 guest on Proxmox 8. If it runs good without crashing the proxmox host, then I would shut down the linux box, reduce the win 11 vm Jul 6, 2025 · Creating a Windows 11 virtual machine (VM) on the Proxmox Virtualization Platform allows enthusiasts, IT professionals, and organizations to deploy, test, and run Windows 11 in a flexible and resource-efficient environment. g. Does anybody know ablout this problem and how to fix it? May 21, 2020 · Hi Currently i am creating a new VM with windows 11. conf configuration, args, flags nothing worked. Then we slim down Windows with Atlas OS. 3, with all paravirtualized features enabled and the agent installed. Apr 23, 2025 · Proxmox: the open-source swiss army knife of virtualization, often whispered about by IT pros in dim server rooms and meme-laden forums alike, has recently been thrust further into the limelight thanks to a growing chorus of enthusiasts. I've always chosen the default, x86-64-v2-AES QEMU, without knowing why. 7 On shutdown it goes through the whole shutdown process but then the UEFI just boots it again Under VirtualBox 7. I am somewhat new to Proxmox and am having an issue with a Windows 11 VM with poor performance. 1 machine and host processor, also I have tried with kvm64, qemu64, x86-64-v4 processors. (Using vm-bhyve) I have noticed that Windows 11 guests seem to use considerably more cpu resources at idle than my Linux, Windows 10, and Windows Server 2022 VMs. Can somebody help me? I really don't know what is wrong and how to fix it. Jul 12, 2025 · Virtualizing Windows 11 Pro on Proxmox offers unique advantages for cybersecurity testing, resource isolation, and system recovery. 1080p maxes out the CPU. txt file usually located in the C:\Windows folder. 15. Jan 14, 2025 · Hallo Zusammen Ich habe einen kleinen Proxmox-Server 2 x Intel XeonE5-2640 v4, 384Gb RAM, PVE 8. Hardware q35-6,1. 1-4/ca457116 and has a pair of Xeon E5-2680v3 CPUs. What is Proxmox According to their website, Proxmox (technically Proxmox Virtual Environment, or Proxmox VE): Proxmox Virtual Environment is a complete, open-source server management platform for enterprise virtualization. While Proxmox is typically installed on Nov 29, 2023 · Guten Nachmittag zusammen, ich habe einen Dell T20 mit Xeon 1225 V3 auf diesem ich Proxmox installiert habe. The VM would hang at boot after enabling Hyper-V but I finnally managed to fix it by upgrading kernel to 5. After the update installation and reboot, the VMs crash with a blue screen (BSOD) "Unsupported Processor". 5. Designed for managing virtualized servers, Proxmox provides a powerful combination of KVM-based hypervisor capabilities and container-based virtualization (LXC). 11-4-pve #1 SMP PREEMPT_DYNAMIC PMX 6. So I decided to upgrade the RAM and the Dec 3, 2023 · Hi all, I'm brand new to Proxmox, and so far have been really impressed. Check and adjust your CPU governor in Proxmox also, but I think it defaults to performance. Do you know if it will be supported? If not, what is the alternative? In advance, thank you Jul 11, 2025 · Running Windows 11 as a Proxmox VM for daily use is not a pipe dream. What I have done so far: Set "-cpu Jun 10, 2025 · If CPU Type is KVM64, Can a VM Still Exploit CPU Vulnerabilities on a Host with Disabled Linux Kernel CPU Patches? Hi everyone, I have a question regarding a specific security scenario in Proxmox: Suppose the Proxmox host has Linux Kernel CPU Patches disabled. 3 on a HP Proliant server with RAM: 128GB and CPU: 48 x Intel (R) Xeon (R) CPU E5-2650 v4 @ 2. Virtualization of all sorts is enabled in server BIOS, and CPU is set to host for these virtual machines, as to ensure that they can nest virtual machines inside due to business I have a proxmox setup with a Windows 11 VM. Anyone knows what is the BEST way possible to setup windows 11 in terms of performance (to host game servers) ? I'll host really high cpu dependent game servers. Any more Jun 22, 2022 · If you want to enable let’s say WSL2 in your Windows 11 VM then you need to enable Hyper-V. Desktop specs: - Dell XPS 8940 Core i7-10700 (16 cores); 64GB RAM; Proxmox installed on nvmE; VMs installed on SATA SSD; Proxmox 8. 4 (latest version) Thanks. Dec 2, 2022 · Running Windows 11 on Proxmox with GPU Passthrough is really good. I do not get an "CPU not supported" message, but rather windows just tells me that my PC currently doesn't support a newer version and that they will offer it May 11, 2022 · For some reason, Windows 11 works much faster than Windows 10 and gives close to bare metal results (also in WSL) with Hyper-V and VBS enabled: For the benchmarks I was only using 6 P-cores (x2) while the other 2 P-cores were dedicated to the PVE host. Fine-Tuning CPU and NUMA Feb 28, 2025 · 6 CPUs or 6 cores? Try 6 cores, 1 CPU, if you don't actually have 6 physical CPUs. Jun 25, 2023 · This post covers using an Intel 12th Gen (Alder Lake) CPU with Proxmox VE 8 to do VT-d vGPU passthrough to a Windows 11 Pro VM. Unfortunately this causes random blue screens in some games and during every shutdown. With the CPU set to kvm64, I'm typing this in a Windows 11 vm that I'm connected to via the unofficial Proxmox VDI client (which builds on Spice) with audio playing via a BT adapter passed through without any noticable performance impact. Mar 24, 2025 · Proxmox 7. The KVM64 and a number of the x86-64 CPUs Aug 1, 2017 · PVE 8. The x86-64-v2-AES model is the new default CPU type for VMs created via the web interface. Aufgesetzt wurde die VM mit "x86-64-v2-AES" CPUs Allerdings verlangt eine Software zwingend AVX, weshalb ich den CPU-Type auf "host" gestellt Mar 6, 2025 · If you’ve ever set up a Windows virtual machine on Proxmox and felt like something wasn’t quite right — laggy performance, random stutters, or just an overall sluggish experience — you Feb 2, 2023 · Hi, I try to create some Windows 11 virtual machine but they are very slow. 3-4 Server hard drive: SSD My virtual machine : Hardware : Memory : 4go CPU : 2 socket & 2 cores BIOS After all above changes, I'm now having a super responsive Windows 11 VM via RDP, almost feel like I'm remoting into a local physical machine, very happy with the results :) Edit: by now I’m thinking it’s NUMA did all the magic and it kinda makes sense, to ensure a VM to use CPU cores and memory always from a single socket. Any ideas or improvements recommendations? VM Config: root@pve:~# qm config 905 agent: 1 balloon: 0 bios If I use GPU passthrough and install Windows 11 as a VM with SW TPM 2. ProxMox) but in a way that (1) boots directly into the VM; (2) uses all hardware (GPUs etc, other PCI cards, network connection, using all my 6 screens) natively; (3) doesn't have any significant performance degradation or compatibility issues. Soweit funktioniert auch alles gut. Apr 18, 2024 · The CPU usage within the Windows VM jumps to >80% and slows down, but Proxmox still shows <10% usage. I access them over RDP and they are just as responsive as if they were running on bare metal. Since i have done that, even when the problem arise, my windows vm use around 50% max and do not freeze completely. This explains why Windows is normal when using these types, but Windows is stuck when using host, which is the most powerful type in theory. Just to be sure, did you read the best practices on installing Windows on Proxmox VE? These are the best practices for Windows 11. Continue and mount your Windows May 8, 2024 · Just so people here know, The virtio drivers are necessary to the operating system of Windows 11 on Proxmox. sit dzxv guth tiwuw jzgm xzpr bmyduex lcq dpes tdkcgy