Hello, Betty DENYS
Thank you for your feedback. I understand that you are experiencing issues with not being able to get windows 11 updates and the taskbar getting stuck. Here are some troubleshooting options:
1.Regarding the stuck taskbar issue, you can press Win+Shift+Esc to open Task Manager and select Restart File Explorer.
- You can test if it is the same issue in Safe Mode:
On the Windows logon screen, hold down the Shift key while selecting “Power > Restart”.
After restarting, > Restart > Startup Settings > Advanced Options Troubleshooting ”
Select 4 or 5.
- Regarding your update issue, you can send me a screenshot of the error where you can't get the update.
You can try an in-place update which will refresh your windows and will not delete your data, but for important data it is still recommended that you back up.
Perform an in-place upgrade in Windows 11 - Microsoft Community
I look forward to your feedback.
Best Wish
Kai Ho |Microsoft Q&A Specialist