What’s New in Windows 10 Cumulative Update KB5003637

Microsoft has shipped new Windows 10 cumulative updates for all versions still getting support, and merely as expected, the newest stable builds are getting their very own improvements.

Windows 10 version 2004, 20H2, and 21H1 are now being provided with exactly the same cumulative update simply because they share the codebase, therefore the refinements and bug fixes available this month are available via KB5003637 on all three versions.

Worth knowing is that this cumulative update boosts the OS build numbers to 19041.1052, 19042.1052, and 19043.1052, with respect to the version running on your device, and you may check it out simply by typing winver within the Start menu.

A typical Patch Tuesday update

As for what’s new in Windows 10 cumulative update KB5003637, you need to keep in mind this can be a Patch Tuesday release, therefore it includes mostly security fixes supposed to resolve vulnerabilities found in the operating-system and the pre-loaded components.

Based on the official changelog, this update improves security when Windows performs basic operations, when verifying passwords so when using input devices such as a mouse, keyboard, or a pen. Microsoft says additionally, it includes updates for storing and managing files.

There are no new bugs in these updates, as all known issues happen to be inherited from the previous releases.

But worth knowing is that quite a few users may still report slower performance in games, and Microsoft says those affected typically run games full screen or in borderless windowed modes.

The good news is the issue has already been resolved, though a complete patch is not yet available.

“This issue is resolved using Known Issue Rollback (KIR). Please note that it usually takes as much as Twenty four hours for that resolution to propagate automatically to consumer devices and non-managed business devices. Restarting your device may help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, it may be resolved by installing and configuring a unique Group Policy,” Microsoft says.

The update can be obtained via Windows Update for devices configured to receive updates automatically.

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