When we clone a virtual machine, a new instance is created but the SID remains the same. A simple utility exists that enables you to quickly change the SID and the computer name of a cloned virtual machine.
1. The utility is called NewSID v4.10 and is available for download free of charge.Download this utility from below link:
Run the command prompt and run the auto option (switch A) to create a new SID and rename the computer. It takes a few minutes for the process to complete and the computer to reboot (Figure B). When you log in to the computer again, the SID is brand new and the computer automatically renamed.
With the command newsid.exe /a [newcomputername]