uninstall error

About this tag
Discussions about uninstall errors on WindowsForum.com often involve problems removing problematic Windows updates, such as the January 2026 cumulative update KB5074109. Users report that this update broke classic Outlook POP email access and Cloud PC logins, leading many to seek ways to uninstall the update to restore functionality. However, uninstalling such updates can itself encounter errors, including failed rollbacks or system instability. The forum covers troubleshooting steps for uninstall errors, including using the Windows Update settings, safe mode, or command-line tools like DISM and System Restore. Common themes include update-induced regressions, recovery from failed uninstalls, and Microsoft's out-of-band fixes to address these issues.

  1. January Windows 11 KB5074109 Update Breaks Outlook POP and Cloud PC Logins

    A routine January Patch Tuesday update left a significant slice of Windows users temporarily unable to rely on core productivity workflows after the January 13, 2026 cumulative update (KB5074109) introduced regressions that broke parts of classic Outlook and disrupted remote access for some...
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    • 0x800f0905 appx packaging boot issues cloud pc cloud sync enterprise it it administrators kb5074109 known issue rollback microsoft store out-of-band outlook outlook pop patch management patch tuesday security updates uninstall error windows 11 windows update
    • Replies: 6
    • Forum: Windows News

  2. Patch Tuesday KB5074109 Breaks Classic Outlook and Encrypt Only Emails

    A routine Patch Tuesday release on January 13, 2026 has left a significant portion of classic Outlook users scrambling: the Windows 11 cumulative update KB5074109 and a separate Outlook Current Channel build have each introduced regressions that render parts of the traditional Outlook experience...
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    • Thread
    • azure virtual desktop boot issues classic outlook encrypt only emails gpu drivers kb5074109 kb5074109 issues known issue rollback onedrive out of band fixes out-of-band patch outlook classic outlook pop hang outlook troubleshooting patch tuesday pst files pst files onedrive remote desktop servicing stack stability issues uninstall error unmountable boot volume windows 11 windows 11 boot issues windows 11 update issues windows 11 updates windows update
    • Replies: 9
    • Forum: Windows News