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 ...

Windows 11 KB5078127 is an 'out-of-band' patch to fix an issue that broke Outlook Classic (POP, PST) after January 2026 Patch ...

Microsoft’s first big Windows 11 refresh of the year is going so badly that the company is telling people to pull the update ...

Struggling with the Windows 11 Mail app not syncing? Discover proven, step-by-step fixes to get your emails flowing smoothly again. Quick solutions for common sync errors without tech headaches.

Now, Neowin reports that several users are saying the latest Windows 11 update ( KB5074109) has made classic Outlook ...

Microsoft shares workarounds for a Windows 11 KB5074109 bug that breaks Outlook for POP email accounts and PST files.

Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...

If your Outlook Classic freezes or hangs when you use POP accounts or deal with PST files, you'll need to remove Windows 11 ...

Microsoft has taken the rare step of publicly advising users to uninstall a Windows 11 security update after it triggered ...