Story perspectives

Microsoft's January Update Sparks Widespread Crashes, Urgent Fixes Needed

1/25/2026

Summary

Story summary

Microsoft's January 2026 Patch Tuesday updates for Windows 11 caused widespread issues, prompting emergency out-of-band updates.
The January 13 update, KB5074109, caused Outlook freezing and app crashes, especially for users with cloud-stored PST files.
Microsoft advised users to uninstall the problematic update temporarily, despite potential security risks.
The incidents reflect a troubling trend of low update quality for Windows, raising expectations for improvements as Microsoft investigates.

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Story summary

Microsoft's January 2026 Patch Tuesday updates for Windows 11 caused widespread issues, prompting emergency out-of-band updates.
The January 13 update, KB5074109, caused Outlook freezing and app crashes, especially for users with cloud-stored PST files.
Microsoft advised users to uninstall the problematic update temporarily, despite potential security risks.
The incidents reflect a troubling trend of low update quality for Windows, raising expectations for improvements as Microsoft investigates.