Hi everyone, I came across this forum while looking for solutions to a disk boot failure that happened a few hours ago. The people on this forum sound knowledgeable so I'd like to ask for your help here. I recently bought a 640 GB drive to add to my system for installing 64-bit Vista. I already had a 320 GB drive running 32-bit Vista in my computer which I was planning on formatting and using as external storage after getting the new hard drive up and running with the 64-bit. When I installed it though, my system automatically became a dual-boot 32-bit + 64-bit Vista because I had the original hard drive connected while the new one installed. In my stupidity (and nonexistent experience with dual-booting) I proceeded to delete the partition of the 32-bit hard drive after I got the 64-bit one completely up and running exactly how I wanted it. I never realized that the MBR resided only on the first hard drive so the next time my computer restarted, I was greeted with DISK BOOT FAILURE! So my current situation: 320 GB drive, former 32-bit Vista, deleted partition 640 GB drive, 64-bit Vista with files intact, but no boot I tried the steps on Recovering the Vista Bootloader from the DVD wiki. But when I try the "bcdedit /createstore c:\boot\bcd.temp" step of Nuclear Holocaust, I get "store creation operation has failed." And now I'm stuck... Is it possible for me to create an MBR from scratch on the new drive? Is there anything else that you guys think I can do about this other than start all over? Thanks guys, all help is appreciated.