I attempted several times to use the "Sign In Options" yesterday without success.
I also noticed that in Settings where it usually said - Accounts - and my name, MSA and Administrator,
It said "Local Account Administrator!" instead.
THis morning after I booted I got offered "Set Pin" and that worked normally.
I have never seen the phrase Local Account Administrator before.
DISM and SFC showed no problems today so perhaps things have corrected themselves..??
Davy.
Sounds like you were switched to a local account. Probably by mistake. 😂🤷♂️
I use local accounts on many different machines. It is still an option to use Local Account.
The pin can be different for the local Account and the MS account. I use the same one in both cases. 🤷♂️