Security News > 2022 > July > Windows 10 KB5015878 update released with gaming fixes
Microsoft has released the optional KB5015878 Preview cumulative update for Windows 10 20H2, Windows 10 21H1, and Windows 10 21H2. This update includes numerous bug fixes and enhancements, including gaming and Windows Autopilot fixes and a new Focus Assist feature.
The KB5015878 cumulative update preview is part of Microsoft's July 2022 monthly "C" update, allowing admins to test upcoming fixes released in the August 2022 Patch Tuesday.
If you run a Windows Insider build, the preview update will be installed automatically.
Windows users can install this update by going into Settings, clicking on Windows Update, and manually performing a 'Check for Updates.
Windows 10 users can also manually download and install the KB5015878 preview update from the Microsoft Update Catalog.
In addition to Windows fixes, the KB5015878 cumulative update also upgrades the Windows 10 servicing stack, which is used to install Windows updates as they become available.
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