| Access Denied When Attempting to Promote a BDC to PDCID: Q197488 
 | 
You receive an "Access Denied" message you when attempt to promote a backup domain controller (BDC) to primary domain controller (PDC) after you apply Service Pack 4 to one or more domain controllers. This message occurs if you attempt to perform the promotion from a domain controller running Windows NT 4.0 Service Pack 3.
Service Pack 4 upgrades Windows NT 4.0 security making domain controller promotion from a computer running Windows NT 4.0 Service Pack 3 impossible.
To resolve this problem, perform the promotion from a domain controller running Windows NT 4.0 Service Pack 4.
Additional query words: SP3 SP4
Keywords          : kbnetwork ntdomain ntsecurity 
Version           : winnt:4.0
Platform          : winnt 
Issue type        : kbprb Last Reviewed: April 23, 1999