Old C: drive was dying. Installed 2nd drive, install XP on it Dual boot info is stored on C: drive. I want to remove C: drive entirely. I read what looks like contradicting info: 1. just delete C: partition and Windows will creat mbr on D: drive and make it bootable 2. OR, registry for D: drive will need letters D: changed to C: (?) A. Can I have system with no C: drive? and it boots from D:.? Right now I boot from D: but C: is still visible and accessible B. Will I lose access to C: as drive letter if I remove that drive? When I removed C: and ran Windows Setup, Repair Console, and typed in fixmbr, I got dire warning that I might lose partition tables and all access to data. So I backed off. Is that what I need to do? Windows will create new mbr on drive D:? I see that all the standard boot files are on C: and none are on D:.