If you are an XP Home user, the original install disk is needed. Just insert the disk and auto-run should bring up the XP install menu. If this does not happen, open My Computer, right-click the drive that contains the disk, and select AutoPlay. When the install menu comes up, select Perform Additional Tasks. Next select Click Browse this CD. Then, in Windows Explorer, double-click the ValueAdd folder, then Msft, and then Ntbackup. Finally, double-click Ntbackup.msi to install the Backup utility.

To use it, go to the Backup and Restore Center (Start -> All Programs -> Accessories -> System Tools -> Backup):

In it, you can configure settings to make XP do backups to your HDA daily, weekly or monthly. This is done by going to Start -> All Programs -> All Programs -> Accessories -> System Tools -> Scheduled Tasks. If you have never done this, you will have to create a new scheduled task.

The first time it runs , you may select whether it will back up all your files now or later.

It saves your files in the form of .bkf files. Unlike Vista, you must use "Restore Files" in the Backup program.