I'm trying to setup W2K on a new HD. For use in my current box. I disconnected existing HDs, plugged in new one, fdisk, format. Put W2k upgrade cd in drive, go to drive, type setup, got message "cannot run file from dos. " However, put the '98 cd in the drive, type setup, runs fine. I have run setup directly from the W2K cd before, or at least thought I have. I'll just upgrade the 98 if I have to . Why can't I run setup or setup.exe from a dos prompt. Must I have a full release of W2k as opposed to an upgrade?