I'm sorry, I didn't clarify. Download nut.exe, the .reg and the driver. Keep them all in the same directory together, I keep them by themselves. Transfer the keys.txt file into the same directory as nut.exe. Install the driver, then the reg file, then launch nut. Let it do it's thing then you'll see the GUI popup. Click on the "local scan paths" tab, click "browse"and point it to the directory containing your games. After that, click scan at the top and watch your list populate. Follow
@Chaosta 's directions for transferring.
BE CAREFUL WITH THE ORGANIZE FILES FUNCTION!!!! I ended up messing up my backups that I had updated with have updates and dlc and when I clicked organize, it deleted them all so I had to update the games all over again. Ooof.