Microsoft is investigating issues related to the August 2026 updates that may affect the launch of certain games or cause crashes on select Windows 11 systems. Users have reported problems such as games freezing, closing unexpectedly, encountering "EXCEPTIONACCESSVIOLATION" errors, and unexpected system restarts. The updates in question include KB5121003, which was part of the August 2026 Patch Tuesday and included enhancements like Secure Boot updates and improvements to File Explorer and Windows Search. Microsoft has encouraged affected gamers to report issues via the Feedback Hub app. In the past, Microsoft had to block Windows 24H2 upgrades due to known issues and lifted compatibility holds for several popular games.