I used to run an Active Directory installation. The AD server had died a few years back and I'd just been running on cached credentials since I didn't have hardware available to rebuild on and hadn't been using AD for that many services.
I recently got a new server and am trying to get AD set back up. I am unable to boot the old system and don't know where backups are of the old AD tree. I was able to associate the computer to the new domain, but presumably since SIDs don't match up, it recreated new users with the same name (but a .000 on the user directory) for my user. I'm trying to figure out a good way to merge the old local user with the new AD account. I'm aware that it can be done by moving registry entries and files from one set of user files to the other such as is described here, but I wasn't sure if there might be a simpler, more direct way to force a re-association despite the change in SID. The domain name and username are the same for both.