Account Lockout Status is a free application that helps you find out the exact reason why a user was locked out at any given time. No matter whether it happened because of entering the wrong password ...

During an attempt to sign in, if Windows displays the Please wait for the User Profile Service message for a long time, say 5 minutes, then that post will help you ...

Enable them, disable them, change the default user account, etc.? I'm aware that most threads about this mention using Sysinternals PSEXEC. That's not an option as 3rd-party programs aren't tolerated ...