ADTidy

Use this free tool to clean up your Active Directory domain by identifying unused user and computer accounts.

Features:

-Search for user or computer accounts
-Search entire domain or select a specific OU
-Specify alternate credentials to connect to domain with
-Get account last logon information from all DCs or select specific DCs
-Optionally only find accounts that have not logged on for a specified number of days
-Can ping any computer accounts found, to help confirm if they are still active
-Exclude or include disabled accounts, or only find disabled accounts
-Exclude specific account names from the search results