Microsoft blames RGB peripherals for crashing Windows 11 — RGB software is causing blue screens, crashes, and game freezes

Like clockwork, it’s a new month and a new OS-breaking bug has been discovered in Windows 11‘s latest monthly update, KB5121003. Users reported random system instability, with games freezing or outright crashing, and even BSODs in worst-case scenarios. Microsoft investigated the issue and reached a vindicating conclusion — RGB software installed on affected PCs was interfering with core system components, causing Windows 11 to become unstable.

Online multiplayer titles such as Arc Raiders, Marvel Tokon: Fighting Souls, and The Finals were most affected by this issue. Reports mentioned these games exhibiting a pretty classic crash pattern. They’d suddenly hang and become unresponsive, show an “EXCEPTION_ACCESS_VIOLATION” blue screen, and force your computer to restart automatically.