Hi Ed, My pet name for these is Deathpros. Anyway, F10 is the appropriate key. Compaq machines have the configuration program for the BIOS installed on the hard drive. If you are installing a new system disk you will need to go to the Compaq web site and download the ROMPaq for your machine. They should have instructions for installing it on the new hard drive there. It can be tricky, so let me know off-line if you are having trouble and I will help you through it. Hope this helps! Kyle Elmblade Distinct Computer Solutions [log in to unmask] From: "Ed Bogert" <[log in to unmask]> Sent: Thursday, June 07, 2001 3:58 PM Subject: [PCBUILD] Bios setu screen > My son gave me a Compaq Deskpro 2000 computer with Win98 installed. I want to install a larger hard drive in this machine but, I cannot seem to be able to enter the bios set-up screen on boot-up. I've tried F1, F2, and Delete but it just goes on and loads windows. I have to change some hardware parameters but can't get into cmos to accomplish this. Any answers? Thanks Ed Bogert The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com