This isn't really a win 98 issue, it's a BIOS issue. The BIOS settings come before the operating system is loaded. As indicated in the other posts, what you have to do is find out what key your computer uses to kick you into the bios settings (usually it's esc or F1) then change the settings so that it will boot from CD first before it tries to boot from the HD. You hold down the key as soon as you push the start button, don't wait for it to boot.