Syntax: WBADMIN START SYSTEMSTATERECOVERY -version: -showsummary -backupTarget:{ | } -machine: -recoveryTarget: -authsysvol ...

Syntax: WBADMIN START SYSTEMSTATERECOVERY 
    -version: 
    -showsummary
    [-backupTarget:{ | }]
    [-machine:]
    [-recoveryTarget:] 
    [-authsysvol]
    [-autoReboot]
    [-quiet]

Description:  Performs a system state recovery to a location and from a backup
that you specify. To use this command, you must be a member of the Backup 
Operators group or Administrators group. 
Note:  Windows Server Backup does not back up or recover registry user hives 
(HKEY_CURRENT_USER) as part of system state backup or system state recovery.

Parameters:
-version       Specifies the version identifier of the backup to recover in 
                MM/DD/YYYY-HH:MM format. If you do not know the version 
                identifier, type WBADMIN GET VERSIONS. 

-showsummary   Reports the summary of the last system state recovery (after 
                the restart required to complete the operation). This 
                parameter cannot be accompanied by any other parameters.

-backupTarget  Specifies the storage location that contains the backup or 
                backups that you want to recover. This parameter is useful 
                when the storage location is different from where the backups
                of this computer are usually stored.

-machine       Specifies the name of the computer that you want to recover. 
                This parameter is useful when multiple computers have been 
                backed up to the same location. Should be used when
                -backupTarget is specified.

-recoveryTarget  Specifies the directory to restore to. This parameter is 
                useful if the backup is recovered to an alternate location.

-authsysvol    If used, performs an authoritative recovery of SYSVOL (the 
                System Volume shared directory).

-autoReboot    Specifies to restart the system at the end of the system state
                recovery operation. This parameter is valid only for a 
                recovery to the original location. We donot recommend you use
                this parameter if you need to perform steps after the recovery
                operation.

-quiet         Runs the command with no prompts to the user.

Examples: 
WBADMIN START SYSTEMSTATERECOVERY -version:03/31/2005-09:00
WBADMIN START SYSTEMSTATERECOVERY -version:04/30/2005-09:00 
-backupTarget:\\servername\share -machine:server01