Potential issues: If you are trying to log into a VM with domain credentials and see an error message about the trust relationship to the DC, here is a workaround. Log into the VM using local Administrator account, same Password;1. Next, open a command prompt and reset the machine account password: netdom resetpwd /server:emu-dc /userd:contoso\administrator /password:Password;1 Finally, log out and test the domain login again. It should now work.
Return to SQL Server 2012 Developer Training Kit Virtual Machine wiki.