Typically, accounts only become locked if someone enters their password incorrectly a certain number of times, depending on a business’s password policy.  Whilst this is an easy fix, it can be frustrating for users who are unable to gain access to their systems whilst waiting for us to unlock their account.  Quick checks before entering passwords into machines are to make sure the Caps Lock isn’t on and, if you get it wrong twice, just slow down and check each key as you type to make sure you aren’t pressing something incorrectly.