3,058 questions with Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V tags

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2 answers

Hyper-V AF_HYPERV permissions and service isolation for VMMS-managed VMs

Hello Microsoft Hyper-V Support, I am evaluating a security design using an ordinary VMMS-managed Hyper-V VM on Windows 11 Pro and need clarification on the supported AF_HYPERV security and authorization model. This is a design/documentation question…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-10-05T01:24:34.3933333+00:00
fengchun chen 20 Reputation points
answered 2026-10-05T17:03:39.91+00:00
Chance Maurice Niyonzima 255 Reputation points Independent Advisor
1 answer

Windows 11 Pro 25H2 Build 26200: VBS and Hypervisor remain running after all related features are disabled, preventing VMware nested virtualization

  Hello Microsoft Support, I am experiencing an issue with Windows 11 Pro where Virtualization-Based Security (VBS) and the Microsoft hypervisor remain active even after I have disabled Hyper-V, VBS, HVCI/Memory Integrity, Credential Guard, Virtual…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-09-18T20:07:58.58+00:00
Shyam Narayan Gupta 0 Reputation points
commented 2026-10-05T15:09:04.6+00:00
Giridhar Mudedla 0 Reputation points
1 answer

Hyper-V VM repeatedly crashes with SYSTEM_SERVICE_EXCEPTION (0x3B)

I am running a Windows virtual machine using Microsoft Hyper-V Manager. The VM is hosted on a physical Windows system. The VM has repeatedly crashed/restarted with a SYSTEM_SERVICE_EXCEPTION (0x3B) bugcheck. The crash parameters from the dump…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-10-04T16:27:10.7566667+00:00
Shiva S 0 Reputation points
answered 2026-10-05T03:16:26.3033333+00:00
Daphne Huynh (WICLOUD CORPORATION) 1,575 Reputation points Microsoft External Staff Moderator
1 answer

Having trouble installing clean Windows 11 on Hyper-V Windows 11

I have a Windows 11 PC and Hyper-V enabled. I successfully did a Quick Create option with Windows 11 Dev Environment virtual machine. However, when I try to create a Windows 11 VM from scratch I get error message "This PC can't run Windows 11".…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2023-08-05T15:04:19.0533333+00:00
Rod 41 Reputation points
edited a comment 2026-10-04T08:29:47.83+00:00
Bünyamin 0 Reputation points
4 answers

Windows Developer VM or images, where are they now?

I changed job this spring. I am a software tester, I used to use virtualbox, but want to use HyperV if it does in fact function. I'm on an AMD processor i9, win11, the Enterprisey version, I have a MSDN/visual studio license only. I always used to…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2025-04-17T15:06:32.1333333+00:00
Conrad Braam 0 Reputation points
answered 2026-10-01T05:13:51.75+00:00
floorpedo 0 Reputation points
1 answer

Is there a supported way to set and read host bind/connect permissions for Hyper-V sockets on VMMS-managed VMs?

I'm designing an application for ordinary persistent Generation 2 VMs managed through VMMS/WMI on Windows 11 Pro (observed host build 26200). The full host revision and guest builds are not yet pinned. This is a documentation question before…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-09-27T22:01:11.7666667+00:00
Chris Terrell 120 Reputation points
commented 2026-09-29T01:46:15.4966667+00:00
Daphne Huynh (WICLOUD CORPORATION) 1,575 Reputation points Microsoft External Staff Moderator
6 answers

Disable Virtualization-Based Security Without Disabling Hyper-V

I am currently trying to run Hyper-V without virtualization-based security enabled, and I have encountered some problems. My first attempt at doing this involved enabling the "Virtual Machine Platform" feature, and setting some of the…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
Windows for business | Windows Client for IT Pros | Devices and deployment | Configure application groups
Windows for business | Windows Client for IT Pros | User experience | Other
asked 2021-01-26T02:45:43.92+00:00
s.exe 11 Reputation points
commented 2026-09-27T08:54:22.57+00:00
Rajan Shrestha 0 Reputation points
0 answers

Unable to Fully Disable Hyper-V – “A hypervisor has been detected” Still Appears in systeminfo

Hi everyone, I'm facing a persistent issue where the line “A hypervisor has been detected. Features required for Hyper-V will not be displayed.” still shows up when I run the systeminfo command, even after trying every method commonly recommended to…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2025-05-15T11:13:23.0166667+00:00
commented 2026-09-23T08:14:04.3666667+00:00
JuliaMarvin 23,010 Reputation points Volunteer Moderator
2 answers One of the answers was accepted by the question author.

Hyper-V doesn't boot ISO file to install OS

Hi there, For school I have to set up a virtual test-network using Hyper-V and Windows Server 2022. I downloaded the free Trial Version .ISO file here Next I've set up the virtual machine and selected install from bootable CD > Image File (iso) >…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
Windows for business | Windows Server | Devices and deployment | Set up, install, or upgrade
Windows for business | Windows Server | User experience | Other
asked 2024-01-01T10:16:54.51+00:00
Axel 20 Reputation points
commented 2026-09-20T14:18:07.32+00:00
Farshid Ekrami 0 Reputation points
2 answers

Hyper-V VM creation fails (HCS/ERROR_FILE_NOT_FOUND) even after full repair install, BIOS/chipset update

System: HP ProBook 455 15.6" G10, AMD Ryzen 5 7530U, Windows 11 25H2 Issue: Cannot create any Hyper-V/WSL2 virtual machine. Every attempt (Docker Desktop, wsl --install with default WSL2 version) fails…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-09-17T09:01:31.5+00:00
Adekunle Ayodeji 0 Reputation points
answered 2026-09-17T09:34:15.69+00:00
Xuan Nhu 1,370 Reputation points Independent Advisor
3 answers

How can I disable top bar in Hyper-V client in full screen Permanently.

How can I disable top bar in Hyper-V client in full screen Permanently. I am using Dell Tablet. Window 11 is on tablet and I am running window 7 in Hyper V connection. When I touched the screen it appears and behind the bar there are some button. I want…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-09-16T17:52:06.68+00:00
Khurram Aziz 0 Reputation points
answered 2026-09-16T18:50:04.19+00:00
VPHAN 45,100 Reputation points Independent Advisor
1 answer

HYPER-V Default Switch corrupts hosts.ics and DNS stops working

Hi. I've seen Linux guests (I only run Linux VMs) losing access to DNS occasionally with HYPER-V on up to date Windows 10. They get no response from the DNS server on Default Switch. I've managed to track down that at those times the…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2021-11-18T11:22:34.667+00:00
Kohtala 11 Reputation points
edited an answer 2026-09-14T07:25:11.0166667+00:00
Kohtala 11 Reputation points
3 answers

KB5124008 (Win 11 25H2, build 26200.9445) breaks Plan9/virtiofs host share attachment for Hyper-V based sandbox VMs

Summary After installing KB5124008 on Windows 11 25H2 (build 26200.9445, x64), a third-party application that hosts a lightweight Hyper-V based Linux VM can no longer attach host folder shares to its guest. The VM boots normally and the host side reports…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-09-09T10:45:51.0333333+00:00
Interested Member 0 Reputation points
answered 2026-09-11T20:29:43.3666667+00:00
Jose Luis Sancho Garcia 0 Reputation points
2 answers

Hyper-V SET Team Causing TCP Retransmissions with Dynamic Load Balancing

Hi guys, Guest VMs are seeing frequent TCP retransmissions when network traffic is distributed across a Hyper-V Switch Embedded Teaming (SET) configuration. Packet captures indicate that Dynamic load balancing is distributing traffic across multiple…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-09-07T14:51:39.1133333+00:00
Lysa Analyst 0 Reputation points
answered 2026-09-07T15:23:10.86+00:00
Domic Vo 34,330 Reputation points Independent Advisor
2 answers

Windows 11 25H2: Hypervisor detected and VBS running despite Hyper-V, VBS, Credential Guard disabled

(Edited) Windows 11 Home 25H2 (Build 26200.8655) I am trying to completely disable VBS and the Windows hypervisor because VirtualBox is running in Hyper-V mode (green turtle icon) and performance is significantly reduced. I have already disabled: …

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-06-20T02:21:06.03+00:00
DavidBeaumont 5 Reputation points
edited an answer 2026-09-05T12:05:00.4066667+00:00
davekp 0 Reputation points
1 answer

Shielded VM Key Storage Provider (KSP) – TPM 2.0 Communication Lockup

Hi all, A Shielded VM fails to power on with the error: “The Virtual Machine Subsystem failed to decrypt the VM state.” Further diagnostics indicate that the host Key Storage Provider (KSP) has lost communication with the physical TPM 2.0 module. What is…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-09-04T15:53:35.06+00:00
Fath Swift 0 Reputation points
answered 2026-09-04T16:50:53.55+00:00
Scott Nguyen 2,135 Reputation points Independent Advisor
2 answers

The Windows Hypervisor Platform fails to be enabled on my Microsoft Surface Laptop 4, why is that??

I have tried creating a virtual device in my Android studio but once installed the Windows Hypervisor Platform shows its not enabled, when trying enabling it, it prints out an error as follows " Failed to enable WHPX: Unknown error (code:…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-08-25T23:13:49.37+00:00
Stanleon Exaud 0 Reputation points
answered 2026-08-26T02:41:15.3733333+00:00
Hoang Le 6,275 Reputation points Independent Advisor
2 answers One of the answers was accepted by the question author.

Is it possible to add support for DirectX 12 in Hyper-V's GPU-P?

My system specs: CPU: AMD Ryzen 7 5800X GPU: AMD Radeon RX 6800XT RAM: 64GB DDR4 @ 3333MT/s OS: Windows 11 25H2 I’ve tested several 3D applications running on Hyper-V virtual machines using GPU Paravirtualization, and everything worked perfectly —…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2025-11-01T20:07:27.4133333+00:00
Arturbc 26 Reputation points
commented 2026-08-25T06:10:39.1633333+00:00
JuliaMarvin 23,010 Reputation points Volunteer Moderator
1 answer

GPU ALLOCATION ISSUE TO VM's WITH WINDOWS 11 PRO OS

Hi Microsoft Community, Good day! I currently have a Dell Precision Tower server running Windows 11 Pro. I have set up Hyper-V with four virtual machines (VMs), which will be used for business and client purposes. One of the requirements is to allocate…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-08-24T23:43:44.4433333+00:00
Ino Sone 0 Reputation points
answered 2026-08-25T02:27:20.2466667+00:00
Hoang Le 6,275 Reputation points Independent Advisor
2 answers

Difficulty disabling Hyper-V

Good evening, everyone! How are things? I need to disable Hyper-V, VBS (Virtualization-Based Security), and Device Guard so I can enable the AMD-V virtualization feature for my VMs (VirtualBox and/or VMware). The feature is already enabled for the VMs…

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
asked 2026-08-24T00:02:48.76+00:00
Johanderson Marinho 0 Reputation points
answered 2026-08-24T00:17:16.88+00:00
Marcin Policht 109.8K Reputation points MVP Volunteer Moderator