I had Windows XP on a 20GB (Maxtor) hard disk. While trying to add another hard drive of 160GB (Western Digital) capacity, I ran OnTrack (came with Western Digital) and it mistakenly overwrote the boot partition of the original disk. It also damaged the recovery software on the disk. Now when I try to run the recovery program from the recovery CD, it starts and then gives the error "The disk has EZ-Drive on it. But it's corrupted". After acknowledging, it shows "Error # 87. Failed to initialize engine". Then it runs for a couple of seconds and asks for the the second CD. The second CD does not run for even 5 seconds and then says " Take any CD or Floppy out and press enter for rebooting. The recovery process will continue after restart". After rebooting it will say "No Operating system found. Press F1 to go through the boot sequence again". I used the utilities that came with Western Digital CD and erased both the disks to get rid of anything that could have been on them. However, each time I am getting the same problem.