DISCLAIMER: Don't pay attention to this. Don't follow these directions. If I said something wrong and you do it, it's your fault, not mine. First thing, make a Boot Diskette (floppy). Go to http://www.bootdisk.com/bootdisk.htm
to get the software for it. You're going to want "Windows 98 OEM." Follow the software directions to create the floppy disk. Remove the disk. Then go to: Start > Shut down > Restart Computer in MS-DOS mode When you get to DOS, type C:>format C: and follow the directions given to you. It should take awhile to reformat an old computer. After it is finished, insert the floppy disk and restart your computer. The BootDisk software should load CD-ROM drivers. I havent used in awhile, but it SHOULD say what letter it assigned to your CD drive when it boots up the diskette. Sometimes its a weird letter like R: instead of D: or E: Take note of this. Insert the Windows 98 CD, and type C:>A: (replace A with whatever letter your CD-Rom was assigned) type A:>dir look for a file called "install.exe," "setup.exe," "win.exe" or something else. type A:>install.exe (or whatever the install file is called, it could likely be setup.exe) and voila. Follow the instructions to reinstall W98.