Duplicate computer names are generated if you use a Windows Setup program to generate random names for a large number of computers
Consider the following scenario:
- You are deploying operating systems, such as Windows Vista or Windows Server 2008, to a large number of computers.
- You use a Windows Setup program to generate random computer names for these computers.
In this scenario, duplicate computer names may be generated. Computers that have duplicate names cannot join the network or access network resources. You have to redeploy the operating systems to these affected computers.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB970485.