ASR does not back up user files or any other data, only data necessary for restoring the systems configuration state.
Other backup systems can be put in place to ensure user's actual data files are also backed up.
In the event of a failure, an ASR restore is performed first, which allows user files to then be recovered.
ASR is only available in Windows XP Professional and some editions based on it.
This computer data storage-related software article is a stub.