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

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

Beyond Outlook and Remote Desktop bugs, the KB5074109 patch is now causing immediate app closures and freezes for certain ...

Windows 11 KB5074109 is now available for Windows 11 25H2 and 24H2. This release mostly has bug fixes and improvements.

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 users report system freezes, app crashes, and driver issues after installing Microsoft update KB5074109.

Microsoft has released Windows 11 KB5074109 and KB5073455 cumulative updates for versions 25H2/24H2 and 23H2 to fix security ...

Microsoft has really stepped in it with the first Windows 11 update of 2026. Reports from annoyed Windows users are cropping ...

Microsoft is investigating a Windows 11 regression that is causing classic Outlook to hang, lag, or become unresponsive after ...

The dilemma for millions of Windows users now is that Microsoft also warns that “while you might choose ultimately to ...

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

Microsoft has shipped its first Patch Tuesday update of 2026 for Windows 11, delivering cumulative update KB5074109 to ...