Microsoft investigates Windows 11 update causing gaming crashes

Microsoft is investigating widespread technical issues following the release of the Windows 11 security update KB5121003. The update, intended to patch over 400 vulnerabilities, has instead caused significant instability for many users, particularly within the gaming community.

Reports indicate that the update triggers game crashes, the 'EXCEPTION_ACCESS_VIOLATION' error, system freezes, and unexpected PC restarts. Affected titles include ARC Raiders, The Finals, and MARVEL Tōkon: Fighting Souls. Microsoft has identified a link between these failures and peripherals or internal components featuring RGB lighting. The issue appears to stem from drivers or code components, such as 'inpoutx64.sys', which may conflict with the updated Windows kernel.

Embark Studios has confirmed the involvement of the 'inpoutx64.sys' file and is working on a long-term fix. In the interim, developers have suggested workarounds involving the Windows Command Prompt to disable the conflicting driver. While users can uninstall the KB5121003 update to restore stability, doing so leaves their systems vulnerable to the hundreds of security flaws the patch was designed to address.