Computers, like any appliance, can break down or fail. To protect your important files from computer failure, you should make backup copies of your files. Each edition of Microsoft Windows XP—except Windows XP Home Edition—includes Windows Backup, a program that helps you save your files to an external disk. If you use Windows XP Home Edition, you can manually install Windows Backup.
To manually install Windows Backup using the following procedure
Insert your Windows XP CD into your CD drive. If Windows XP Setup does not appear after several seconds, open My Computer, right-click your CD drive, and then click AutoPlay.
In the Welcome to Microsoft Windows XP window, click Perform additional tasks.
Click Browse this CD.Double-click VALUEADD, double-click MSFT, and then double-click NTBACKUP to open the \VALUEADD\MSFT\NTBACKUP folder.In the NTBACKUP folder, double-click NTBACKUP.After setup is complete, click Finish.
You can now start Windows Backup by clicking Start, pointing to All Programs, pointing to Accessories, pointing to System Tools, and then clicking Backup.