Boot from a Win98SE bootable floppy (keep Sys, Fdisk, Scandisk, Deltree, etc. all handy here).
1) use Deltree to Delete the C:\WINDOWS directory (make sure you save your Outlook Express folders, address books, and any other configuration files).
2) from the Booting floppy, type SYS C: to make C: bootable in Win98SE.
3) Now reboot from C:\ (or from Floppy if you don't know how to load your CD-ROM Drivers), you will get to the C:\> prompt.
4) Goto your Win98's CD-ROM's path and run "SETUP.EXE /P f" to install Win98SE.
Manish
http://manishmalik.cjb.net - just another 1-page site.