Hi there. I'm new here so didnt't really know where to put this but here goes. I recently bought a new PC (3.0ghz, 1tb HDD with 8gb RAM). I didnt buy an operating system with it because I was sure I had a disc laying around from my old PC with Vista on it. I now cannot find this disco so am left with a PC with no operating system. I have Windows 7 on an external hard drive so is there any way I could boot that operating system from the external hard drive. I turn it on and all I get is command prompt as expected telling me to boot my operating system. If this is not possible will I be better just burning the iso to a disc then trying it that way? Thanks in advance. Sorry if this is in the wrong place.