[resolved] Windows 10 not loading - just a black screen

Hi! Once I updated to Parallels 20, Windows 10 failed to load and I got a black screen. The solution I followed to fix it was :

1. Shut down the Virtual Machine. Make sure that the virtual machine is shut down. If it is in a suspended state, please run it and then shut it down (Actions > Shut Down). Repeat for all virtual machines.
2. Click on the Parallels icon in the Mac menu bar > Control Center > Right-click on the virtual machine > Configure.
3. Hardware > CPU & Memory > Advanced > Hypervisor > select Apple > tick the Adaptive hypervisor on.
 
I am getting a blank screen as well.
The above suggestions did not work for me. This is impacting my work. Someone needs to resolve this quickly for me.

I reported the following technical details: 469560549

Thanks.
 
This actually worked for me (Parallels 20 + Win10):
Stop your Win10 vm. Open VM configuration (sprocket icon or right click -> configuration). "Open CPU & Memory" tab -> Advanced -> Select "Apple" from the Hypervisor dropdown menu. Start your VM.
Other options (Extended Memory or Adaptive Supervisor) don't seem to make any difference for me.
Hope this helps
P.S. I'm using an Intel MacBook Pro
 
Adeboye Adeotan said:
Hi Everyone,

Kindly try performing the following actions to resolve the issue in Parallels Desktop 20


1. Shut down the Virtual Machine. Make sure that the virtual machine is shut down. If it is in a suspended state, please run it and then shut it down (Actions > Shut Down). Repeat for all virtual machines.
2. Click on the Parallels icon in the Mac menu bar > Control Center > Right-click on the virtual machine > Configure.
3. Hardware > CPU & Memory > Advanced > Hypervisor > select Apple > tick the Adaptive hypervisor on.

Kindly let us know if this resolves the issue.

If it does not, please collect a technical report after issue reproduction (click Parallels icon > Help > Send technical data > check "Attach screenshots..." > press Send Report) and send the report's 9-digit ID in reply to this post.
Click to expand...

This is the only fix that worked fine for me.
 
I have a black screen in Windows 10 after installing update
Version 20.0.0 (55653). It says that the blackscreen error is fixed in updates but it is not. What are these software engineers doing? they should d a better job testing anything before releasing it.
 
I had the same Black Screen problem with my Windows 10 VM after upgrading to Parallels 20 on an Intel Mac. I downgraded to Parallels 19, until I had more time to debug. In Parallels 19, I shutdown the VM and switched the Hypervisor from Parallels to Apple. I had no problems with the same Windows 10 VM when I re-installed Parallels 20.
 
A black screen on Windows 10 can occur due to several issues. First, try restarting your computer, as it might resolve a temporary glitch. If that doesn't work, boot into Safe Mode by holding down **Shift** while restarting and selecting **Advanced Options > Startup Settings > Enable Safe Mode**. From there, update your graphics drivers or check for any display issues. You could also try pressing **Ctrl + Alt + Delete** and selecting **Task Manager** to see if any processes are freezing the system. If all else fails, performing a system restore might be necessary to fix the problem.
 
AJH1 said:
Hi,
I've just reported (431695322) this, and sent the technical data. I'm running MacOS Ventura 13.4.1 (on a 2017 12" MacBook) and Parallels 18, with Windows 10, but it's failing to load. I get a black screen. Initially there's an cursor, but that disappears when clicked. Nothing else appears on the screen. I can switch between my Mac desktop and Parallels, but there's nothing on the Windows side.
Please can you assist? Thanks!
Click to expand...
Thanks for sharing the details! It sounds like the black screen issue could be related to Parallels not fully initializing Windows. Since you're running Parallels 18 on MacOS Ventura, you might want to follow some troubleshooting steps, like reinstalling Parallels Tools or checking if there are any pending updates. Another option is to boot Windows in Safe Mode and see if it loads. If none of these solutions work, follow up with Parallels support might be the best next step to get more specific assistance.
 
Hello,

Latest reported instances that occurred post upgrade from v19 to v20, and required a hypervisor switch, were fixed in build 20.0.1 (55659) September release.

If you encounter black screen under different circumstances, let us know, and send us a technical report after issue reproduction (click Parallels icon > Help > Send technical data > check "Attach screenshots..." > press Send Report) and send us the report's 9-digit ID
 
Tried these suggestions on here and nothing works Windows 7. Ridiculous. This is so basic. Latest version of Parallels 20 too, where it is supposed to be fixed.
 
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