Microsoft recently released an emergency update for Windows 11 to fix two significant problems that weren’t detected during initial testing. These issues were addressed through an out-of-band update released as part of the latest Patch Tuesday cycle.
A recent update caused problems for some users, preventing them from properly shutting down their computers or logging in with Remote Desktop. These weren’t the only difficulties the update created, however.
Lots of people who use the older version of Outlook are having trouble opening the program, or it isn’t working correctly once it’s open. One user, Chris Seagrave, explained the problem in a post on a Microsoft forum.
When I start my laptop, Outlook Classic opens fine, but after I close it, Outlook says it’s still running and won’t reopen. I have to manually close the Outlook process in Task Manager to get it to open again, which is inconvenient. Restarting my laptop also fixes the problem, but the issue returns if I simply close Outlook normally and try to reopen it – I’m stuck repeating the process of either using Task Manager or restarting the laptop.
Outlook Classic also fails to show sent emails within the “Sent Items” folder.
John W. reported that Outlook classic stopped working properly after a recent forced Windows update, experiencing issues like freezing and lost emails.
It looks like the problem can be fixed by removing the KB5074109 update. Many users have reported that going back to an older version of Windows 11 solved the issue.
Ever since the recent Windows update, the classic Outlook program has become completely unusable. It frequently freezes and isn’t saving emails properly.
John W
So, Microsoft started off 2026 with a new Windows 11 update – KB5074109, to be exact. It was a pretty standard release with a bunch of fixes, but one thing that really caught my eye was a fix for a bug that was keeping the Neural Processing Unit, or NPU, running even when my system was supposed to be idle. That’s great news for power efficiency!
However, the solutions introduced new issues. This is a concerning pattern that intensified in 2025 and is expected to persist this year if Microsoft doesn’t revise how it releases updates.
Last year, Windows 11 experienced some issues where the Task Manager wouldn’t close properly, and File Explorer displayed a blank white screen when dark mode was enabled. Another update also caused problems with the Windows Recovery environment.
It’s common to hear about issues with Windows 11 after Microsoft releases its monthly security updates. While the reasons are complex, these problems generally happen because the software isn’t thoroughly tested before being released.
Zac Bowden, our Senior Editor, recently shared insights into the surprisingly frequent bugs appearing in Windows 11.
Outlook Classic has experienced problems before. Last October, a bug stopped the app from opening, and currently, another issue is causing a significant increase in CPU usage – up to 50%.
A recent issue in Outlook isn’t critical – it won’t stop your computer from turning off – but it could disrupt how people get work done. Many professionals still use the traditional version of Outlook, so this could be a problem for them.
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2026-01-19 18:39