Microsoft released update KB5020044 to fix a bug that caused noticeable performance drops in games on Windows 11. This issue affected users across various hardware configurations and was most evident in demanding titles and optimised game engines. The company confirmed that the problem originated during the period when the 22H2 update was first rolled out, causing some PCs to experience reduced frame rates and stuttering in gameplay.
Earlier in the update cycle, Microsoft briefly paused the distribution of Windows 11 22H2 and advised users not to install it manually until the bug could be investigated. At that time, the company did not publicly specify which games were most affected, leaving Windows users to trial and error with their own libraries. The pause reflected Microsoft’s cautious approach to ensure system stability while real-world data from early adopters was gathered and analyzed. According to official communications, the pause was a precautionary measure to prevent broader performance degradation as compatibility checks continued across a wide range of devices. (Source attribution: Microsoft)
Users could obtain the fix by updating Windows Update, which now includes KB5020044 alongside the Windows 11 22H2 feature update. This dual delivery ensures users receive both the operating system improvements and the targeted patch in one installation flow, simplifying the process for those who already have the 22H2 update installed. The update reconciles the performance anomaly and should restore expected gaming smoothness for most configurations, provided no other driver or software conflicts exist. (Source attribution: Microsoft)
Microsoft stated that the underlying cause involved an unintended activation of GPU performance debugging features during gameplay. These features were not intended for consumer use and, when enabled, could disrupt normal GPU scheduling and frame pacing. With KB5020044 applied, the GPU debugging paths are disabled as part of the fix, returning system performance to prior levels while maintaining the protections and optimisations offered by the 22H2 framework. This clarification helps explain why some users observed stuttering, frame drops, or reduced max FPS after updating. (Source attribution: Microsoft)
For gamers and PC enthusiasts, the situation underscores the importance of keeping both the operating system and graphics drivers up to date. While the patch addresses the specific bug tied to 22H2, performance variations can still occur due to other factors such as driver version, background processes, and hardware limitations. It remains advisable to verify that all related software components are current, perform a clean system reboot after installing updates, and check game-specific settings if any unusual behavior recurs. Users are encouraged to consult official Microsoft release notes for any known issues or post-install recommendations, and to monitor performance after applying updates to ensure the issue has been fully resolved. (Source attribution: Microsoft)