If indeed you really want to format your hard drive(it deletes all data/programs and settings) It is simple. Ifyou want anything on the drive, back it up, save setting for you isp documents and important data some other way and proced as follows.
Using a Win98 boot disk, boot from it and before proceding, make sure that you have access to you cd rom by inserting a windows disk. The boot disk creates a temporary artifical drive so id you cdrom was D:\ drive, it will now be E:\. From the A:\prompt type E:\ and from the e:\ prompt type Dir to see the contents of the Windows CD. If that all goes as expected go back to the A:\ prompt, type Format C:\ /S and when asked if you are sure, enter Yes. Everything on the hard disk is now being made inaccessable. When done, you have a place to do the clean install of Windows. Reboot, go back to the A:\ drive, type E:\ setup and windows should begin to install itself. I you have questions or need help, post back.
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