Nvidia released the GeForce Hotfix Display Driver 581.94 to address performance issues in certain games caused by Microsoft's mandatory patch KB5066835, which affected Windows 11 versions 25H2 and 24H2. The update led to decreased game frame rates for some users. Nvidia recommends that gamers experiencing performance dips download the latest GPU driver. The company issued a second hotfix a week later to resolve remaining issues, including crashes and clock speed irregularities. The initial patch also caused problems with USB keyboards and mice in the Windows Recovery Environment and triggered BitLocker encryption unexpectedly. It is unclear if Intel and AMD will release their own driver updates in response to the issues caused by KB5066835, although performance problems have been reported with their GPUs as well.