I have a windows 7 system using two 250Gb disk drives. I had reinstalled Win 7 while both disks were connected. The operating system decided to place "Boot" on one drive and the "System" one the other. Now, neither one boots unless they are both connected. I want to replace both disks with a single 2Tb drive cloned from the combination. Now I have run the "repair computer" option after booting from the 7 dvd. I ran otrec /fixmbr", "bootrec /fixboot", and "bootrec /rebuildbcd then rebooted. No joy. Instead the screen said "Boot Manager Missing". I note that in the BIOS, the disk I'm working with is listed as an "Exended IDE Drive that I can toggle between "auto" and "none". Would switching to "none" solve my problem?