Microsoft Windows 11 Out-of-Band Update

[Corrine]

Microsoft issued an Out-of-band (OOB) update that includes quality improvements. The update is cumulative and includes security fixes and improvements from the June 10, 2025, security update (KB506842), as well as the following:

[Fix for incompatibility issue with Easy Anti-Cheat] This update addresses an incompatibility issue where Windows might restart unexpectedly when opening games that use the Easy Anti-Cheat service. Easy Anti-Cheat automatically installs with certain games to enhance security and prevent cheating in multiplayer online PC games. 

Note: Windows users likely didn't experience this issue because the update that led to the incompatibility issue (KB506842) was not offered to devices with Easy Anti-Cheat installed.

This OOB update downloads and installs automatically from Windows Update and Microsoft Update on devices with Easy Anti-Cheat installed and on devices that have not installed KB506842 yet.

[Corrine]

If you're having issues after the out-of-band update or the originally issued June security updates, see this PC World article, Windows 11's emergency June update causes even more bugs and chaos.