Backing up a disk is making a copy of the information on the disk to be stored in place different from the original.

Back up information on a floppy disk, CD-ROM or on a hard disk drive as a protection against loss or damage to the original data. Occasionally, hardware stops working properly. Programs and documents can become corrupted, meaning they are no longer usable or accessible. In addition to hardware and software failures, people sometimes unintentionally delete files. When any of these catastrophes occur, use a previous "backup" version to restore your work or application software.

It is usually a good idea to store at least two copies of your work – one on the computer hard disk and another on portable media, such as floppy disks, CD-ROM, or backup tapes.

Back up files either by making copies using Windows Explorer or using a backup program. Microsoft Backup is a program included with Windows 98.

4.     Click an option button on the Backup program welcome screen: "Create a new backup         job."

Click the "Backup" or "Restore" tab to perform either operation once inside the Backup program. Use the pull-down menus or the toolbar buttons to navigate the program.

1.     Click the Start menu

2.     Click "Programs," followed by "Accessories" and "System Tools" on the sub-menus

3.     Click "Backup" on the System Tools sub-menu

4.     Click an option button on the Backup program welcome screen: "Open an existing         backup job." "Restore backed up files.

5.     " Click "OK."

6.     Follow the Backup Wizard instructions.

7.     To restore files when the Backup program is already started, click the "Restore" tab,         followed by the "Refresh" button in the Microsoft Backup window.