Had same problem with new Laptop and Windows 11 - Security icon in taskbar shows "action needed". Here is what I did to resolve this as could not find what "action" was needed.
Went into Windows Security
Then App and Browser Control
Change Potentially Unwanted App Blocking to ON
Note: Mine was already set to ON - so I switched it to Off - let windows make system change - then went back and switched it to ON
Did not reboot or anything
Windows security icon now shows "no action needed".
GoodLuck