I installed win7 64bit on a new build computer and i installed the OS on the wrong drive. I want to clone the OS to the drive that i wanted it on and then be able to format the other drive to be used for storgage. when i read about the NT signature it seems like if i copy the NT signature the source drive will be unuseable as the system won't recognize it anymore. if i unplug the source disk on boot up and now boot with the cloned one, can i plug in the source disk and format it??? It is a SATA drive so i should be able to plug it in with the computer running and have it recognized by the system so i can format it and use it.