No you can't because the "partition" that windows is installed upon is in use... So the only way to format a drive is to either create another partition with anothe o/s installed (known as "multi-booting") and format from there or use a Win 2000/WinXP installation disk to format the drive (unless you have a floppy disk)... I could send you the Win98 "boot-disk" through e-mail in a ISO format so that you can "burn the image" to cd and boot from that!!! Send me an e-mail and I will send you the ISO file!!!