Windows 11 Update Crashes Games via RGB Software

Windows 11 update KB5121003, released on 11 August, is causing game crashes and freezes when it conflicts with certain RGB lighting software drivers, according to Microsoft. The update, a security release for Windows 11 versions 24H2 and 25H2, has been identified as the source of instability for specific titles, including ARC Raiders, Marvel Tokon: Fighting Souls, and The Finals. The issue is narrowed down to RGB software that installs drivers with file names similar to "inpoutx64". Microsoft is investigating the interaction and has provided a temporary registry-based workaround for affected users.

Key Facts

This section provides the essential technical details and identifiers for the Windows 11 update conflict, as reported in the source material.

Which Games Are Affected by the Windows 11 KB5121003 Update?

Microsoft has specifically listed three games that are affected by the conflict between the Windows 11 update KB5121003 and RGB software drivers. These titles are ARC Raiders, Marvel Tokon: Fighting Souls, and The Finals. The issue can cause these games to freeze, close unexpectedly, or force a PC restart.

It is notable that two of the three affected games, ARC Raiders and The Finals, are developed by Embark Studios. The third game, Marvel Tokon: Fighting Souls, is developed by Arc System Works. The source material notes that Marvel Tokon already has "enough problems of its own," referencing separate DRM issues.

Microsoft has confirmed that the Windows 11 update KB5121003, released on 11 August, causes crashes in ARC Raiders, Marvel Tokon: Fighting Souls, and The Finals when it conflicts with specific RGB software drivers.

How Do You Disable the inpoutx64 Driver to Fix the Issue?

Microsoft's suggested workaround involves temporarily disabling the "inpoutx64" driver using the Windows registry. This is a technical procedure that is not recommended for users who are not familiar with registry editing, as it may cause issues with RGB features on peripherals or components.

To apply the workaround, users must open the Start menu, type "regedit", and select the Registry Editor. From there, navigate to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\inpoutx64". Users should then find the registry value named "Start", double-click it, and enter the number four in the "Value data" field. It is crucial to note down the previous value so it can be changed back if the workaround causes problems.

"temporarily disabling the inpoutx64 driver using Windows registry"

— Microsoft, via Lowyat.NET

The only known workaround for the game crashes is to manually edit the Windows registry to disable the "inpoutx64" driver, a process that carries risks for RGB functionality.

Who Is This For?

This information is for Windows 11 users who have installed update KB5121003 and are experiencing crashes, freezes, or the "EXCEPTION_ACCESS_VIOLATION" error while playing ARC Raiders, Marvel Tokon: Fighting Souls, or The Finals. It is also relevant for users who utilize RGB lighting software that installs drivers with file names similar to "inpoutx64".

The workaround is intended for advanced users who are comfortable with editing the Windows registry. Microsoft advises that the fix is temporary and that they are investigating the interaction between the RGB-related components and the affected games. No timeline for a permanent fix has been provided.

This guidance is specifically for advanced Windows 11 users experiencing game crashes due to a conflict between update KB5121003 and RGB software drivers, who are willing to perform a manual registry edit.

Common Questions

What does the "EXCEPTION_ACCESS_VIOLATION" error mean in this context?

This error message appears when a game crashes due to the conflict between the Windows 11 update KB5121003 and RGB software drivers. It can interrupt gameplay, and in some cases, the game may freeze, close unexpectedly, or force a PC restart.

Is the registry workaround for the RGB driver conflict safe?

Microsoft warns that the workaround is not for inexperienced users. Disabling the "inpoutx64" driver may cause issues with RGB features on peripherals or components. Users are advised to note the original value of the "Start" registry entry to revert the change if problems occur.

When will Microsoft release a permanent fix for the game crashes?

Microsoft has not provided a specific date for a permanent fix. The company states it is currently investigating the interaction between RGB-related components and the affected games, and that additional details will be provided as they become available.

Sources and Methodology

This article is based on a single source: a report from Lowyat.NET titled "Windows 11 Update Conflicts With Some RGB Software; Crashes Games," published on their website. The original report cites Microsoft's official support page for the Windows 11 servicing stack update KB5121003 as its primary source.

All facts, figures, game titles, and quotes were extracted directly from the provided source material. No external data or statistics were added. The direct quote regarding the workaround was taken verbatim from the source article. This article was last updated on 14 August 2026.