Microsoft fixed the Windows 10 game performance issue


Some Windows users reported game performance issues after installation of the Windows 10 updates KB5000842 and KB5001330. The updates were released in March and April of 2021 to devices running Windows 10 version 2004, 20H2 and 21H1.

Ashwin wrote about the game performance issues caused by KB5001330, stating that users reported game performance drops after installation of recent Windows 10 updates.

Microsoft confirmed the problems later on. The known issues section of the updates in question contain the following description:

A small subset of users have reported lower than expected performance in games after installing this update. Most users affected by this issue are running games full screen or borderless windowed modes and using two or more monitors.

Games can be run in the three game modes full screen, borderless window or windowed.

Microsoft has a fix for the issue which will be deployed automatically to “consumer devices and non-managed business devices”. The company is using a new feature, called Known Issue Rollback (KIR) to fix the issue on affected devices. The feature enables Microsoft to “quickly revert a single, targeted fix to a previously released behavior if a critical regression is discovered”.

windows 10 game performance issue fix

KIR is supported in all Windows 10 versions starting with Windows 10 version 2004; some earlier versions have partial support for the feature only.

Microsoft notes that it may take up to 24 hours for “the resolution to propagate automatically”. A restart of the device may apply the fix faster according to Microsoft.

Enterprise-managed devices need to install and configure a “special Group Policy” according to Microsoft. Administrators may download the MSI file on the support pages, e.g. this one. The link is listed in the workaround column of the described issue.

Closing words

Windows gamers who are affected by the game performance issue should see performance restored over the course of the next 24 hour period.

Now you: do you play games on your PCs? (via Deskmodder)

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