Double click the registry back up file to restore the registry.
I ran the freeware version of "Registry Medic" and all went well except for one small detail... any site where I am registered, i.e., cnet, ebay, msnbc,local weather, ect., my user name or password will not save and I have to re-enter the info everytime after the computer has gone into hibernation and is "woke-n" back up. As long as it dosen't go to hibernate, everything is saved. Any ideas ? Thanks.