By default, Num Lock is disabled on startup. Many users have numbers in their passwords (usually is requested to have them in password), so it result sometime by locking of account.
Way to prevent this problem by enabling Num Lock on startup and logon screen is next:
- Run Registry Editor.
- Move to
HKEY_USERS\.Default\Control Panel\Keyboard.
- Change the value for InitialKeyboardIndicators from 0 to 2.
