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Microsoft Windows 11 gaming disruption after KB5121003

Service Disruption
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1 unique sources, 1 articles

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The Windows 11 gaming disruption is causing crashes, launch failures, freezes, and restarts on affected PCs, and Microsoft is investigating the problem. The issue affects Windows 11 24H2 and 25H2 systems after KB5121003 and later updates. Early findings point to RGB lighting devices whose drivers or components may trigger the breakage when certain games start. Embark Studios has shared a temporary inpoutx64.sys workaround while Microsoft works on an official fix.

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Timeline

  1. 21.08.2026 17:54 2 articles · 1h ago

    RGB lighting devices may trigger Windows 11 game crashes after KB5121003

    Technical Analysis Update

    Microsoft said Windows 11 24H2 and 25H2 systems that installed KB5121003 and later can see games crash, fail to launch, freeze, throw EXCEPTION_ACCESS_VIOLATION errors, or restart unexpectedly, and the company said the problem may be triggered by drivers or code components installed by RGB lighting peripherals.

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