Maintain password history

This policy controls whether password history is maintained or not.

If you enable this policy, previous passwords are preserved in AD along with current password.

If you disable or not configure this policy, previous passwords are NOT preserved and only current password is stored in AD.

Supported on: At least Windows Vista

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft Services\AdmPwd
Value NamePwdHistoryEnabled
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

admpwd.e.admx

Administrative Templates (Computers)