Nvidia has confirmed that last month’s security updates are causing gaming performance issues on Windows 11 24H2 and Windows 11 25H2 systems.

To address these problems, the American technology company released the GeForce Hotfix Display Driver version 581.94.

“Lower performance may be observed in some games after updating to Windows 11 October 2025 KB5066835 [5561605],” Nvidia said in a support document published earlier this week.