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by ma51

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I have recently re-installed nt onto my server and then restored from tape the original files and settings. Unfortunately this did not restore the original SID file which meant I had to disconnect and then reconnect 50 workstations which is a b*** aching task. Is there anyway I can avoid this in the future

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by dc1

If that server was your PDC it would be in your best interest to build even a low end PC as a BDC so you can promote it to the PDC before you have to do any drastic measures.

by bohicam1

Poster #1 is correct. When you reinstall NT server, it creates a new SID. A server does not see user names and group names, it sees a number. When you reinstalled NT, it created a new numbering system, therefore it did not recognize any of your accounts. In other words, no, you cannot avoid this in the future using this method. You must take a machine (a BDC) and promote it to PDC, then install the renewed server as a BDC and promote it.

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