To perform an unscheduled system backup of a domain controller, perform the following steps:
wbadmin start systemstatebackup -backupTarget:E: -quiet
Tip
You cannot store a system state backup on a network shared drive.
Note
For a full list of wbadmin start systemstatebackup parameters, go to http://technet.microsoft.com/en-us/library/cc742124.aspx.