QUOTE(1hotjob @ Feb 11 2007, 01:01 AM)

You can build the new drive with XboxHDM. FTP the C and E drives from the Xbox to the PC, making sure you have the eeprom.
Read the tutorial with Xboxhdm. Build the CD, prepare the 20 gig drive with the CD. If you have a softmod, you will need to lock the drive. Reboot and use option 3 then type lockhd -a.
Put the 20gig in the Xbox and make sure it works.
Use the boot CD in the PC to unlock the 160 gig, if locked. I use a 98 boot disk and run fdisk on the drive then format. It is ready for any PC.
Thanks for the input.
I followed the tutorial for xboxhdm. The tutorial states I need a copy of slayers evox setup. I obtained a copy of the latest, but it is an ISO image and I cannot extract its contents. This creates an issue with xboxhdm in that I can't put the files its asking for into the linux folder. I knew that the slayer setup would be able to setup my evox on the 20 gig drive, so I decided to burn the image of slayer to a CD and see if I could get the 20 gig all setup. I put the completed slayer disc in the xbox and everything went well. So the XBOX is setup with the 20 gig drive. Now I again switched the HDD's in the XBOX, putting the orginal 160 gig back in the xbox and ran slayer again. I ran the option to unlock the drive...and powered down the XBOX & put the 160 back into the PC. It's recognised perfectly ok in the bios, but when I boot into windows it still doesnt show...so I guess it's not unlocked?
I guess my question is, do I NEED the slayer files in my boot disc for xboxhdm? or will it work ok if I dont add those files? I'm trying to avoid having to search for a non iso copy of slayer. If not then I will go with the advice you gave about reformating the 160 gb drive. Cheers.