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Windows 11 Update Causes Black Screens And Breaks Outlook
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7.3
On January 13, 2026 Microsoft released Patch Tuesday update KB5074109 (Build 26200.7623 / 26100.7623), which is triggering brief black screens, wallpaper and desktop.ini issues, Outlook Classic hangs for POP accounts, and Azure Virtual Desktop/RDP credential failures. Microsoft acknowledged the regression, published a Known Issue Rollback for AVD, and is investigating Outlook while recommending uninstall or awaiting an out-of-band fix.
Scoring Rationale
Official confirmations and actionable mitigations raise impact; limited novelty and non-AI scope reduce strategic importance.
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