I used up the 5 password errors yesterday and now have the correct password, but the error message was still there today. How many more days until I can get into my files?
You can usually get back in without waiting several days. If this is a Windows account, repeated password failures may trigger a temporary lockout, but the exact wait depends on the account policy and is often only a few minutes. If you are still seeing the error the next day, it is more likely that Windows is rejecting the password itself or the account is still locked rather than a simple failed attempt counter. You can try signing in from another device or use the account recovery option to confirm the password before repeatedly trying it.
Merely unplug the power source from The Book and it will drop the error message and prompt for password.