Task Manager Efficiency mode is greyed out in Windows 11

If Task Manager Efficiency mode is greyed out, expand the process and disable Efficiency mode, check whether Windows is ...
Ars Technica

Closing Windows 11’s Task Manager accidentally opens up more copies of Task Manager

One reason to use the Task Manager in Windows is to see if any of the apps running on your computer are misbehaving or using a disproportionate amount of resources. But what do you do when the ...
Bleeping Computer

Microsoft: Windows Task Manager won’t quit after KB5067036 update

Microsoft has confirmed a known issue that is preventing users from quitting the Windows 11 Task Manager after installing the October 2025 optional update. This comes after widespread user reports ...
ZDNet

Windows 11 users hit with bizarre Task Manager duplication bug - here's how to avoid it

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XDA Developers

Windows 11 is reportedly making more Task Managers whenever you close one

Simon is a Computer Science BSc graduate who has been writing about technology since 2014, and using Windows machines since 3.1. After working for an indie game studio and acting as the family's go-to ...