I recently installed an M.2 drive on my computer. My Hard Drive, 1 TB, had an installation of W10 already. I tried using software to migrate just the OS, but it wouldn't budge, so I had to install Windows again on the new M.2 drive, and formatted the old one. However, when I start my computer now, it always shows this screen saying "Which volume of W10 would you like to boot into?", refering to the installation of it on my M.2 drive, and also the old one on the Hard Drive. As I said, I formatted the HDD and it has nothing on it so does anybody know how to get rid of the 'boot into x volume' sceen?