I installed C:\Vista and D:\WinXP as a dual boot setup using two SATA drives and EasyBCD 1.52. Everything was fine and I continued to use them both until I felt everything was stable. I decided it was time to remove the training wheels (XP dual boot) using EasyBCD 1.52. I rebooted and everything was fine.
Now I wanted to format D:\. Right clicking on the drive and selected Format it would not allow me to do it. I then proceeded to delete everything on the drive. I can delete everything, but Boot and Bootmgr. It tells me that they are in use. To prove this I unplugged the D:\ drive and the system would not boot.