New Windows Updates Cause UNSUPPORTED_PROCESSOR Blue Screens

Microsoft’s August 2023 Preview Updates for Windows 11 and Windows 10, labeled as KB5029351 and KB5029331 respectively have resulted in blue screen errors citing an unsupported processor issue. BleepingComputer reports: “Microsoft has received reports of an issue where users receive an ‘UNSUPPORTED_PROCESSOR’ error message on a blue screen after installing updates released on August 2,” Redmond said. The company also added that problematic cumulative updates “may be automatically uninstalled to allow Windows to start as expected.” Microsoft is investigating the newly confirmed known issue to determine whether it stems from a Microsoft-related cause. The company also urged users experiencing these BSOD errors to file a report using the Feedback Hub.

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