Microsoft has released a fix to address the performance issues that some gamers on Windows 10 versions 2004 and 20H2 have encountered after recent OS updates. The company has detailed the issue on its Windows 10 Health dashboard (via Bleeping Computer), and the performance problems appeared in the optional KB5000842 patch released last month, and they're also present in this month’s Patch Tuesday updates.
"A small subset of users have reported lower than expected performance in games after installing KB5000842 or later updates. Most users affected by this issue are running games full screen or borderless windowed modes and using two or more monitors,” the company explained.
To address the issue, the company has used the new Known Issue Rollback capability, which allows the company to rollback a bug fix in an update because of a known issue. To do that, the company just needs to make a configuration change in the cloud, and it usually takes up to 24 hours for the resolution to reach consumer devices and non-managed business devices.
"Restarting your device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, it can be resolved by installing and configuring a special Group Policy,” the company explained." Microsoft announced the deployment of the Known Issue Rollback last week on April 23, so most users who have been encountering gaming performance issues should now have received the fix.