For Sysprep open an elevated cmd prompt and enter %windir%\System32\Sysprep\Sysprep.exe
In the sysprep dialog that opens, choose System Cleanup Action as Enter System Out-of-Box-Experience (OOBE), select Generalize, select Shutdown Options Shutdown. Click OK
At switch off pull power move the hardrive to the new machine and then boot where sysprep will run as if it was a fresh install possibly needing reeboots.
use test user to start to desktop.
google it if your unsure
*NB If you get a fatal error trying to run sysprep You just need to stop the WMP networking service, and run sysprep with generalize option again.
You can stop the service in question by typing net stop WMPNetworkSvc to command prompt, and hitting Enter: (use cd C:\windows\system32 to set correct directory)
or easier still use task manager