Blackscreen during Windows 10 Hyper-V Machine Update Installation

Black Screen After Installing Windows 10 Hyper-V Update

If you have recently installed an update for Windows 10 Hyper-V machine and your screen turns black with the Windows logo and progress ring appearing for a while before disappearing, leaving you with a black screen, then you are not alone. This is a common issue faced by many Windows 10 users after installing updates related to Hyper-V.

Understanding the Issue

The issue arises due to a compatibility problem between the updated Hyper-V virtual machine and your graphics card driver. The black screen is caused by the graphics card driver failing to switch the display mode after the virtual machine starts.

Resolving the Issue

To resolve this issue, you need to update your graphics card driver to the latest version. Here are the steps to do so:

1. Press Win + X and select Device Manager from the list.
2. Expand the Display adapters section.
3. Right-click on your graphics card and select Update driver.
4. Select Search automatically for updated driver software and let Windows search for and install the latest driver for your graphics card.

Alternative Solution

If updating the graphics card driver does not resolve the issue, you can try the following alternative solution:

1. Press Win + R and type regedit to open the Registry Editor.
2. Navigate to the following key:
   HKEY\_LOCAL\_MACHINE\SYSTEM\ControlSet001\Services\VmGuestService\Parameters\VmGfx

   
   

3. In the right pane, right-click and select New > DWORD (32-bit) Value and name it DisableVRAMLimit.
4. Double-click on DisableVRAMLimit and set its value to 1.
5. Close the Registry Editor and restart your computer.

The black screen issue after installing a Windows 10 Hyper-V update is caused by a compatibility problem between the updated Hyper-V virtual machine and your graphics card driver. To resolve this issue, you need to update your graphics card driver to the latest version. If updating the graphics card driver does not resolve the issue, you can try disabling the VRAM limit in the Registry Editor.

References

• Type: Article

  Title: Fix: Black Screen After Installing Windows 10 Hyper-V Update

  Link: https://www.windowscentral.com/how-fix-black-screen-issue-after-installing-windows-10-hyper-v-update

• Type: Article

  Title: How to Fix Black Screen After Installing Windows 10 Hyper-V Update

  Link: https://www.technewstoday.com/how-to-fix-black-screen-after-installing-windows-10-hyper-v-update/

• Type: Article

  Title: Fix: Windows 10 Black Screen After Hyper-V Update

  Link: https://www.drivereasy.com/knowledge/fix-windows-10-black-screen-after-hyper-v-update/