USMT can perform offline migration of user state from a computer. In an offline migration, the capture is performed in Windows PE instead of the existing operating system. The advantages of performing an offline user state migration are:
· You do not need to log on to the computer on which you are capturing user state.
· Hardware resources and files are more readily accessible by ScanState and other USMT tools.
· Performance may increase on older computers that have limited hardware resources and numerous software applications.
· Doing so may help avoid conflicts where a file is in use by another application or service.
· You may be able to use an offline migration to recover files and settings if a computer no longer starts properly.
The disadvantage of performing an offline user state migration is that some user settings are not captured but rather can only be captured while running USMT in the target operating system. For a list of the settings that are not captured when performing an offline user state capture, see What Does USMT Migrate?
You can perform USMT offline user state migration in the MDT:
· In a Refresh Computer deployment scenario using LTI, ZTI, or UDI when the value of the USMTOfflineMigration property is set to "TRUE"
· In a New Computer deployment scenario using LTI with the Move Data and Settings wizard page in the Deployment Wizard or if the value of the USMTOfflineMigration property is set to "TRUE"
Note You cannot perform USMT offline user state migration in the MDT New Computer deployment scenario using ZTI.