Microsoft acknowledges KB5000842 game performance issues, is rolling out a fix
19 hours ago
Games have been reporting that the most recent Windows 10 Cumulative Updates ( KB5000842Â and KB5001330) have been causing performance issues, in particular with lower frame rates in games, and even Nvidia has acknowledged the issue, saying:
4/16/21 – If you are experiencing slower performance in games, check if rolling back Windows 10 update KB5000842 fixes the problem.
Now Microsoft has finally weighed in on the issue, saying:
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.
Microsoft is using Known Issue Rollback (KIR) to fix problems caused by Windows 10 updates
These days, it is almost a given that an update for Windows 10 will not only fix bugs and introduce new options, it is also likely to cause additional problems. It is something that Windows users have been painfully aware of for some time, and Microsoft has been working on a solution.
And that solution is KIR, or Known Issue Rollback. The new system enables Microsoft to rollback changes introduced by problematic patches rolled out through Windows Update. KIR only applies to non-security updates.
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Writing on the Windows IT Pro blog, Microsoft’s Eric Vernon and Vatsan Madhavan explain: Known Issue Rollback is an important Windows servicing improvement to support