Notebookcheck Windows 11 Update Issues: Rollback Fails with Error 0x800f0905
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The January 2026 Windows 11 KB5074109 security update has caused significant issues, including black screens and app crashes. Users attempting to uninstall the update are encountering a rollback failure with error code 0x800f0905, indicating a servicing stack/component store error. This has affected many Windows 11 users who followed Microsoft's guidance to uninstall the problematic update.
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