Submission + - Microsoft Blames Windows Gaming Issues on RGB Lighting Devices (bleepingcomputer.com)
"Following the release of Windows updates on August 11, 2026 (KB5121003) and later, Microsoft received reports of issues involving inability to run games as expected," Microsoft said on the Windows release health dashboard.
On impacted PCs, users are also experiencing gaming freezes, "EXCEPTION_ACCESS_VIOLATION" errors, and even unexpected system restarts.
Embark Studios, the Swedish video game developer behind ARC Raiders and The Finals, also said these issues are caused by inpoutx64.sys, but added that they stem from changes made to the Windows kernel driver.
"We're aware of a crash that has been impacting some players since the most recent Windows update (KB5121003). This is a crash related to the file inpoutx64.sys, which changed with the Windows update," Embark said on Monday.
Until Microsoft ships an official fix, Embark shared a multi-step temporary workaround that requires users to delete the service and remove the inpoutx64 file from the Windows drivers folder.