Let me see if I can say this the right way. I have a Toshiba running Windows 8, I did the upgrade when Windows 8 was released but did the online upgrade, so I do not have disks. I just got a Mac book pro and would like to put Windows 8 on it. So I guess my question is do I need to get the disks for Windows 8 or can I just use my Toshiba and hook it up via USB, WIFII or would I would like to do is use my external HD. I read this program will step me through the movement of my stuff from my HD but was not sure if that ment Windows 8 operating system also. If anyone can clear this up for me I would like to say thank you in advance.