I was wondering if there was a way to export the entire registry from a nonbootable hard drive, and import it into a new computer's registry?
I know you can import hives one by one using regedit, but I was wondering if there is an easier way.
If I understand your question right, you want to merge the entire registry from one computer into the registry of another? I can't say I've ever done this, or even know a guy who once met a guy who tried this but just thinking about it gives me an upset stomach.
That being said, RegFileExport by NirSoft can dump offline hive files to standard .reg files which can then be concatenated and imported using RegEdit.