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Event ID: 12298 Source: SAM

Source
Level
Description
The account <computer name>$ cannot be converted to be a domain controller account as its object class attribute in the directory is not computer or is not derived from computer.If this is caused by an attempt to install a pre windows 2000 domain controller in a windows 2000 domain, then you should precreate the account for the domain controller with the correct object class.
Comments
 
As per Microsoft: "This behavior occurs because the Windows NT 4.0 Setup routine creates an account of class User instead of class computer. To add a Windows NT 4.0-based BDC to a domain with a Windows 2000 client as the PDC, use the Srvmgr tool that is included with Windows 2000. You should run this version of the tool only on the Windows 2000 client to pre-create the computer account for the BDC. After you create the account, the BDC installation should finish successfully. See the link below for more details.

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