I currently have 1 SATA HD with XP Pro SP2 on it. I might be getting a copy of Vista soon, and if I do I would like to completely clone my current installation of XP onto an older PATA HD so I will be free to install VIsta on my newer and faster SATA disk. I want to keep both OSs for a while in case Vista has significant problems with anything I use at the moment. Is there any software, preferably free, that will allow me to completely copy the contents and OS of one disk to another? Reps for help. EDIT: Can anyone correct the spelling in the thread title? It should be spelt 'separate'!