From Active Directory Users & Computers, ensure Advanced Features are enabled on the View menu
Navigate to the Users account. You should find an Attribute Editor tab.
Scroll to the pwdLastSet field. Modify it by entering 0 (zero) in the value field. Click OK. This sets the value to (Never) as in the password has never been set. Click OK on the User Account Properties box.
Open the User’s Account Properties again. Go back to the Attribute Editor tab. Scroll to pwdLastSet and modify it with a value of -1. Click OK twice.
When you view the pwdLastSet value, it will now indicate today’s date.