RGB Peripherals Linked to Windows Game Crashes

Microsoft's August 2026 Windows updates, released on August 11, 2026 (KB5121003), have triggered a wave of gaming issues, including crashes, freezes, and system restarts. The company now points to a surprising culprit: RGB lighting peripherals. According to Microsoft, drivers and components installed by such devices may be interfering with game launches and stability on Windows 11 24H2 and 25H2 systems.

The company confirmed on Wednesday that it is investigating reports from users experiencing problems with specific games, including ARC Raiders, MARVEL Tōkon: Fighting Souls, and The Finals. The issues are not limited to a single title or hardware brand, but Microsoft's ongoing investigation suggests a common thread involving RGB lighting features.

Unraveling the inpoutx64 Issue

In a Thursday update, Microsoft identified the potential root cause: peripherals or internal components with RGB lighting may install drivers or code components with file names similar to inpoutx64. On systems where these drivers are present, launching certain games triggers the problem. Microsoft stated,

"Ongoing investigation indicates that this issue is related to peripherals or internal device components which have RGB lighting features. Such devices may install drivers or code components with file names similar to inpoutx64. In systems where these drivers are found, the issue is then triggered by launching certain games."

— Microsoft, Windows release health dashboard

This isn't the first time a seemingly innocuous driver has caused widespread disruption. The inpoutx64.sys driver, often associated with RGB control software, is used by many enthusiast peripherals to interface with hardware at a low level. The Windows update may have changed how the kernel interacts with such drivers, leading to conflicts.

Game Developer Offers Workaround

Embark Studios, the Swedish developer behind ARC Raiders and The Finals, independently confirmed the link to inpoutx64.sys but added crucial context: the issue stems from changes made to the Windows kernel driver. In a statement on Monday, Embark explained,

"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 Studios

Until Microsoft ships an official fix, Embark has shared a temporary workaround that involves deleting the service and removing the inpoutx64 file from the Windows drivers folder. This is an unofficial solution, and users should proceed with caution, as it may affect other software relying on the same driver.

Users Report Freezes and Error Messages

Affected users have described a range of symptoms, including gaming freezes, "EXCEPTION_ACCESS_VIOLATION" errors, and unexpected system restarts. These issues can occur shortly after launching a game or after extended play sessions, making them difficult to predict. The problems appear to be most prevalent on systems running Windows 11 24H2 and 25H2, which are the latest feature updates.

Microsoft is still investigating the exact mechanism linking RGB components to game crashes. The company says it is "presently working to understand the relationship between these RGB components and the games which trigger this issue" and will provide an update when more information is available.

Not the First Gaming-Related Update Issue

This isn't the first time Microsoft has had to address gaming performance and stability issues caused by Windows updates. In October 2024, Microsoft blocked Windows 24H2 upgrades that caused Asphalt 8 crashes and Easy Anti-Cheat blue screens. In January 2025, it also lifted a compatibility hold after fixing a bug in the Auto HDR Windows feature that was breaking some games on Windows 11 24H2 devices. Early last year, Microsoft removed several upgrade blocks that were preventing Asphalt 8: Airborne, Assassin's Creed, Star Wars Outlaws, and Avatar: Frontiers of Pandora players from upgrading their devices to the latest Windows version.

What to Do If You're Affected

For now, affected users have a few options. The most immediate is to apply Embark's workaround, which involves removing the inpoutx64 service and file. However, this may not be suitable for everyone, as it could affect RGB control software or other applications. Alternatively, users can wait for Microsoft to release an official fix, which is likely to come in the form of a cumulative update.

Microsoft has not yet provided a timeline for a permanent solution, but its acknowledgment of the issue suggests a fix is in development. In the meantime, gamers may want to check the Windows release health dashboard for updates, as Microsoft has been posting status updates there.

The Stakes for Gamers and Peripheral Makers

This issue underscores the delicate balance between operating system updates and third-party hardware drivers. For gamers, the inconvenience is real: a simple Windows update can suddenly make favorite titles unplayable, forcing them to choose between security patches and gaming stability. For peripheral manufacturers, the incident highlights the importance of ensuring their drivers are compatible with new Windows versions, especially as the OS evolves.

Microsoft's handling of this situation will be closely watched. The company has a history of resolving such issues, but the wait can be frustrating. As the investigation continues, users are left with a temporary fix and the hope that a more seamless solution arrives soon.