Cloned a drive will not log in it logs off right after you enter your username/password.

The easiest fix for this is to go into the registry at
localmachine->system->mounteddrives (forgive me I don't know the exact name
offhand, but you'll see it, or google it if you don't), and delete all the
entries. This is where the registry defines drive letters.

It works but you need an offline reg editor...