The latest KB5074109 update for Windows 11 causes the classic Outlook app to crash and lose emails, and there’s a risk of data loss if PST or OST files are stored on cloud-backed storage! You can read ...
XDA Developers on MSN
Windows 11's January update is causing chaos with Outlook, and there's no fix yet
There are workarounds, though.
Microsoft has issued guidance to uninstall KB5074109 security update or switch to webmail after the patch caused Outlook ...
Microsoft shared a temporary workaround for customers experiencing Outlook freezes after installing this month's Windows ...
Microsoft admits that “Classic Outlook profiles with POP accounts and PSTs hang after Windows updates on January 13, 2026.” If you’re affected, you need to await a fix. “The Windows Team will be ...
Microsoft Outlook is a robust email client for managing emails, calendars, contacts, and tasks. However, Outlook users occasionally encounter a common and potentially disruptive issue: corruption in ...
Some users have reported that when they open MS Outlook, they receive an error message that Outlook is using an old copy of your Outlook data file (.ost). For some ...
Several Outlook users, on different forums, have reported encountering the error “OST file cannot be opened,” when trying to open the application or sending ...
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