Microsoft says the game crashes, freezes, and EXCEPTION_ACCESS_VIOLATION errors reported after the August 11, 2026 Windows update (KB5121003) on Windows 11 24H2 and 25H2 may be caused by RGB lighting peripherals installing driver files named similarly to inpoutx64. Games affected include ARC Raiders, MARVEL Tōkon: Fighting Souls, and The Finals. Embark Studios, developer of ARC Raiders and The Finals, confirmed the crash is tied to inpoutx64.sys, which changed with the update, and published a temporary workaround requiring users to delete the service and remove the file from the Windows drivers folder until Microsoft issues an official fix.
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Unofficial workaround shared by game devOnce attackers have valid credentials, only 37% of their actions are blockedQuestions this post answers
Why are my games crashing with EXCEPTION_ACCESS_VIOLATION after installing the Windows 11 KB5121003 update?
The crashes are linked to changes made to the Windows kernel driver file inpoutx64.sys in the August 11, 2026 update (KB5121003) for Windows 11 24H2 and 25H2. RGB lighting peripherals or internal components often install drivers with file names similar to inpoutx64, and launching certain games like ARC Raiders, MARVEL Tōkon: Fighting Souls, or The Finals then triggers crashes, freezes, or unexpected restarts. Track how Windows update regressions like this one get resolved by following developer coverage on daily.dev.
How do I fix ARC Raiders or The Finals crashing after the latest Windows update?
Embark Studios, developer of ARC Raiders and The Finals, published a temporary workaround requiring players to delete the inpoutx64 service and remove the inpoutx64 file from the Windows drivers folder, since the crash stems from changes to that kernel driver in the KB5121003 update. This is a stopgap until Microsoft ships an official fix. daily.dev helps developers keep up with vendor workarounds while official patches are pending.
Which RGB devices are causing Windows 11 games to crash after the August 2026 update?
Microsoft has not named specific RGB brands but says peripherals or internal components with RGB lighting features may install drivers or code components with file names similar to inpoutx64, and systems with these drivers trigger crashes when launching certain games after installing KB5121003 or later on Windows 11 24H2 and 25H2. Developers debugging platform-level regressions like this can follow the investigation's progress on daily.dev.
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