If you have experienced performance issues while playing after installing the updates that came in late March and early April then it may be that the fix Microsoft is now rolling out solves your issues.
Reduced performance in games
Update Windows 10 20H2 KB5001330 and Windows 10 2004 included an error that caused many people to experience reduced performance after installing the updates. The problems that the users experienced varied from reduced frame rate, choppy video, and uneven/flickering textures.
- So I go back to Windows 10 1909 build 18363.1500, and I have no problem with the latest Nvidia drivers, even youtube runs smoothly without hacking and vsync works without problems. There is something wrong with the Windows update, ”reported a Windows 10 user on the NVIDIA Forum.
Takes action and acknowledges the problem
- A small sample of users have reported lower performance than expected in games after installing KB5000842 or later updates. Most users affected by this issue, running games in full screen or frameless windows and using two or more monitors, read the changelog from Microsoft for the Windows 10. 2004 and Windows 20H2 updates.
The fix for the issue is sent via KIR, also known as Known Issue Rollback, a feature that sends updates through Windows Update but which should reach as many of the affected users as possible within 24 hours. Microsoft further writes on its pages that it may take up to 24 hours for the updates to be rolled out, but that a restart of the computer may speed up the installation.
NVIDIA, for its part, recommends that users affected by this uninstall the update to resolve the issue, even if this resolves the issue for each user, they will be left without important security updates that were also part of the affected updates.
Note: “For companies that use central control of machines via GPO, Group Policies, the fix is to install and configure a custom Group Policy. The machines need a restart after a new policy has been added. For more information on this, see How to Use Group Policy to Deploy a Known Issue Rollback.
To check if you have received the update
Due to how KIR works, it is difficult for a user to know if an update has been added, or more precisely if the code that caused the problem has been disabled by KIR. Because even if the KIR updates go via Windows Update, they are not delivered in the same way as a regular update, so you have to know which Registry Key to look for.
Register the key to look for to confirm whether you have received the change or not:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FeatureManagement\Overrides\4\1837593227
If you do not see the key with you then do not panic, as mentioned earlier, in this case, it takes up to 24 hours before it is completely rolled out.
Feel free to tell us if you have this problem and if this update was the solution for you!