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PDC/BDC Registry setting

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by mcalhoun 2 views

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Does any know what & where is the registry setting which forces a Domain Controller to boot as BDC or PDC depending on that setting.

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by spiceman

HKEY_LOCAL_MACHINE\Security\Policy\PolSrvRo, double click on the default value and change 03000000 to 02000000. Restart the server. When it comes back up, it should come up as a BDC if it is a BDC.

Why go through such a "risky" process? When you install a BDC, as it comes up the first time, the entire security db is replicated from the PDC. Depending on the complexity of the domain, this can take a significant amount of time and consume a LOT of network capacity.

Safer to demote and promote PDC and BDC as necessary!

Good luck.

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