After a virus got through my Norton 2002 which I had updated the same day, and erased my hard drive, I decided after many attempts of just reformating the HD, installing windows and then using my tape back ups to restore the Hard drive. I then installed DSL wich somehow confused the registry and I did another clean reinstall. I backed up the registry and then again restored the information from the tape. Once again, it did not like DSL. I then tried to import the original Registry from a fresh install and then reinstall one by one the programs.
I noticed that on start up, that the PC was looking for programs not on the HD but in the registry, thus indicating that the old registry was not replaced with the new registry.
Therefore I would like to know how the inport of a registry works. Does it replace the current registry which I did not see? Does it combine with the existing registry? Do I have to first export the existing registry and then import the "new" registry?