Good Day Stelios13,
My name is Carlo, I am also using Windows 11 pc and community member like you. Let us work together to sort this out.
Here's the steps you can try.
-Click Start, type CMD and run it as administrator
-Copy and paste the command below and hit enter.
Sfc /scannow
Wait until the pc finishes scanning and repairing any corrupted system files then proceed with the next command
DISM /Online /Cleanup-Image /RestoreHealth
Once done restart your computer using cleanboot.
https://support.microsoft.com/en-us/topic/how-t...
Restart your computer and check if you will still see that notification.
I hope the information above helps. Please let me know how it goes.
Have a wonderful day ahead and stay safe.
Sincerely,
Carlo T.