Microsoft has advised users to uninstall the Windows 11 January 2026 update (KB5074109) due to reports of serious system and application issues. The update, released on January 13, has caused disruptions for many users.
The most affected users are those using Outlook Classic with POP email accounts or local PST files stored in cloud folders like OneDrive. Many reported that Outlook became unresponsive, failed to close properly, or repeatedly redownloaded emails. These issues made the application almost unusable.
Microsoft recommends switching to Outlook webmail or uninstalling the latest Windows 11 update until a permanent fix is available. Users are warned that removing the update could temporarily reduce system security.
Problems are not limited to Outlook. Several users have reported black screens, reset desktop settings, broken File Explorer customizations, and app crashes when accessing cloud storage services such as OneDrive or Dropbox.
The severity of these bugs makes uninstalling the Windows 11 January 2026 update the safest temporary solution. Microsoft has also published a support document outlining workarounds, including relocating PST files from cloud-synced folders and using webmail instead of Outlook Classic.
The tech giant is investigating the root cause of these issues. Microsoft plans to release a comprehensive fix in an upcoming Windows 11 update to address all reported problems.
Users are advised to follow Microsoft’s guidance carefully. While uninstalling the update resolves the immediate problems, it may expose systems to some security vulnerabilities. Patience is recommended until the company releases a stable solution.
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With Windows 11 now widely used in both home and office settings, this advisory highlights the importance of cautious update management. Microsoft continues to monitor the situation closely to ensure system stability for all users.
