When I bought a new computer, I reinstalled windows on the larger hard drive it came with, but kept the old hard drive as well. I'm keeping the old Windows installation on the hard drive in case I need saved passwords or other data only accessible after signing in.
On the boot screen, it gives me the option to boot into the installation I'm currently using, or the "recovered" installation. Attempting to boot into the second one fails anyway. Is there a way I can automatically boot into this installation while still maintaining the possibility of booting into the old installation?