I didn't copy from the flash drive but I copied the same files to the 500GB that I did to the external and I installed Grub to the 500GB the same way I did to the flash drive. I did copy the one file from the Boot directory to the root, also. (I tried it twice, so I doubt I messed up both times.) Yes, it does. Oddly the flash drive shows on the list twice. No. It's a single NTFS partition with 400+ gig of Drive Images and True Images on it.