User Account Control (UAC) helps prevent unauthorized changes. We don't recommend switching it off. Using the Control Panel leaves little room for error vs. editing ...
What looks like the highest permission level is actually just one step below.
The first and most convenient method to change administrator on Windows 11 is to use the Settings app. You can open Windows Settings app and tweak some settings to switch the administrator account.
You would encounter this error message when trying to launch some programs. The causes include UAC being temporarily or permanently disabled. Also, pending updates ...