Why is my task manager acting like this?

Alen Sabotic 25 Reputation points
2026-07-09T12:38:28.9933333+00:00

Screenshot 2026-07-09 142007

This has been happening since yesterday (from posting this). I don't know how to fix it, even if I close and re-open it sometimes it returns normal but it keeps doing this.

For more explanation: I open the task manager, switch from processes to performance, and they appear to 'blend' into each other as you can see. If I try to minimize the window, black bars appear where the small processes tab is on the screenshot, or the words glitch out as I have shown.

Windows for home | Windows 11 | Display and graphics

Answer accepted by question author
DaveM121 933.5K Reputation points Independent Advisor
2026-07-09T13:11:11.8633333+00:00

1

Your screenshot just indicates some system corruption, that may be caused by a recent update, open the Settings App, go to Windows Update - Update History, what is the KB numbers of the most recent updates installed on your system.

2

Click your Start Button, type winver and hit Enter

Please provide a screenshot of the resulting dialog.

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  1. Matt B 0 Reputation points
    2026-07-10T02:50:50.93+00:00

    You see the system uptime of 9 days in the bottom left of the task manager. You need to REBOOT because something glitched. You have to reboot your system or do a full shutdown once a week, minimum.

    Similar to your smartphone, things will start glitching, performance degrades and odd things happen when you don't "flush" the system out by rebooting or giving it a rest.

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