Back up files to external hard disk, CDs, or DVDs
Choosing to back up your files to an external hard disk frees you from having to keep track of whether or not your files are backed up. As long as your external hard disk drive is connected to your computer, Backup automatically checks to see if you have new or changes files and backs them up for you according to a schedule that you set.
If you don't have an external hard disk drive, you can back up your files to writeable CDs or DVDs. Whichever backup method you choose, Windows Live OneCare reminds you when your files need backing up.
Restore files (even on another computer)
You can restore files that were backed up from any computer running Windows Live OneCare to any computer running Windows Live OneCare. You can restore all the files that were backed up from the original computer, or just the files you choose. With a few exceptions, Windows Live OneCare will automatically try to put the restored files in the same place that they were in on the original computer.
How Backup works
Windows Live OneCare Backup works in stages. First, it scans your computer to look for files that are new or that have changed since the last time that you ran a backup. Next, it shows you the file types that are included in your current backup. You can make changes to this list, or add other files and folders. The Backup Wizard then prepares your files, compresses them, and copies the files to the location you choose.
The first time you run Backup, Windows Live OneCare makes a copy of all your important files and folders. This is a full backup. The next time you run Backup, Windows Live OneCare compares the files on your computer to the files it has already backed up. If a file has not changed since the last backup, Windows Live OneCare skips it. Instead, it backs up only those files that are new or have changed since the last backup. This incremental backup saves space and time during subsequent backups.