System state backup creates a backup file for critical system related components. This backup file can be used to recover the critical system components after a crash.
The Registry, boot files, as well as important system files. Then depending on their availability, the following services will be backed up as well. Active Directory service, Certificate Service database, COM+ Class Registration database, SYSVOL directory.
To do System State Backup, Click on Start button> All programs> Accessories> System Tools then click on Backup->Advanced mode->select System State Backup.