Recent updates to Windows 11, specifically KB5066835 (October 2025 Update) and KB5068861 (November 2025 Update), have introduced a significant issue affecting gaming performance. Reports indicate that this may result in reduced frame rates (FPS) and, in severe cases, may lead to BSODs (Blue Screens of Death).Nvidia has validated these findings, confirming user experiences noted since October 2025.
Both KB5066835 and subsequent updates belong to the Patch Tuesday releases and are automatically installed on computers running Windows 11 versions 25H2 and 24H2. Users should be aware that even if they opted out of KB5066835, they would still face gaming performance concerns, as newer updates carry the same problematic changes.
Are You Affected by the Gaming Performance Issues in Windows 11 25H2 / 24H2?
- Navigate to Settings > System > About.
- Scroll down to find Device specifications.
- Check the Build number listed: if it’s 26200.6899 (for OS version 25H2) or 26100.6899 (for OS version 24H2) or later, you are impacted.

It appears that the performance issues are predominantly linked to Nvidia’s GeForce drivers, as acknowledged by the company. Nevertheless, prior testing has also indicated that performance drops may affect Intel-based PCs.
Steps to Resolve Gaming Performance Issues in Windows 11 25H2 / 24H2 with Nvidia Drivers
Nvidia has indicated that only a subset of games will exhibit lower performance, though the exact number of affected titles remains unclear. The company has released Display Driver version 581.94, which aims to rectify these performance issues. Users can download the latest driver using the link below:
Download Nvidia Display Driver 581.94
This situation is ongoing, and further updates will follow.
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