Question : How do I migrate local users accounts from Windows Server 2003 R2 to a new one?

How do I migrate local users accounts from Windows Server 2003 R2 to a new one?

Answer : How do I migrate local users accounts from Windows Server 2003 R2 to a new one?

There is no Microsoft tool to achieve this.

However you can use a third party app that should be able to do this:
http://www.winzero.ca/MSVR-Migrator.htm