List down all locked user accounts in Active Directory

Go to Active Directory Users & Computers
Under “Active Directory Users & Computers“ right click “Saved Queries” click “New”, “Query”
Enter a Name and description for the query. Click “Define Query…”.
In the “Find” drop down list, select Custom Search.
Click on the “Advanced” tab
In the Enter LDAP query type the following query:
(objectCategory=Person)(objectClass=User)(lockoutTime>=1)
Click OK
Press F5 or refresh on the query window
Now it should query all of your Locked Accounts.