Hi Steve. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.
- Please report this bug to Microsoft using the Feedback Hub app in Start Menu where developers are tasked to process consumer feedback. They will not even see it here. This is a tech forums staffed mostly by volunteers trying to help others with their problems.
- See if you can System Restore to a point before the problem started:
https://itechhacks.com/system-restore-windows-11/
System Restore is your first line of defense and can take you back to a point before a problem began like a time machine. If it doesn't help then you can undo it. Read about it first in the tutorial above and then try restoring to just before this started. If System Restore is not enabled on C drive do that now so it's available in the future.
If the problem repeats or System Restore doesn't work then check which Windows Updates were installed at Settings > Update & Security > Windows Updates > Update History, uninstall them there or System Restore again, then immediately check for and block the Updates with the Hide Updates tool explained here: https://www.tenforums.com/tutorials/8280-hide-s...
- If this was caused by the Upgrade then for 10 days you can roll it back in Settings>Update & Security>Recovery and then hide it until it matures using the Hide Updates Tool which is explained more here:
https://www.tenforums.com/tutorials/8280-hide-s...
- You can also try the known fixes for task bar not auto-hiding in Windows 10 and 11 here:
https://www.intowindows.com/how-to-auto-hide-ta...
https://www.ghacks.net/2017/04/29/windows-10-ta...
https://www.laptopmag.com/articles/windows-task...
https://www.howtogeek.com/howto/31779/fixing-wh...
- Run the Windows 11 System File Checker/DISM in WIndows 11:
https://www.elevenforum.com/t/use-system-file-c...
- If that doesn't fix it then you can do a Windows 11 Repair Upgrade: https://www.elevenforum.com/t/repair-install-wi...
I hope this helps. Feel free to ask back any questions. Please report back results for all steps given so I know what else to suggest if necessary.
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