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VulnerabilitiesAug 27, 2026

Microsoft rolls out fix for Windows 11 crashes, gaming issues

Microsoft releases fix for Windows 11 crashes and gaming issues caused by RGB driver.

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Summary

Microsoft has issued a fix for a bug causing system crashes and game launch failures on Windows 11, specifically affecting versions 24H2 and 25H2. The issue was traced to the inpoutx64.sys driver, often installed by peripherals with RGB lighting. The fix disables this driver on affected systems, resolving the problem.

The lesson from this incident

Full lesson

A bug in the third-party driver inpoutx64.sys, commonly bundled with RGB peripheral software, caused system crashes and game launch failures on Windows 11 versions 24H2 and 25H2. The root issue highlights how third-party hardware drivers introduced via consumer peripherals can destabilize enterprise and personal systems without adequate vetting. Microsoft's remediation — disabling the offending driver — underscores the risk of unvetted software components entering systems through the supply chain of peripheral manufacturers. This matters because driver-level code runs with kernel privileges, meaning a faulty or malicious driver can compromise entire system stability and security. Organizations must treat third-party drivers with the same scrutiny applied to any privileged software component.

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Indicators of Compromise

  • malware — inpoutx64.sys

Entities

Windows 11 (product)Microsoft (vendor)