Run windows on usb external

[rlvaldez]

I have a laptop harddrive with windows 7 already installed. I was wondering if i could take this and connect it to my desktop via usb connection and boot up and run windows.

 

[USAFRet]

1. Taking a laptop drive and expecting it to boot on a desktop will not work. Even if you connect it internally.
2. Taking a Windows boot drive and using it via USB and expecting it to boot will not work.

There are some convoluted methods to install Windows on a USB external drive. But it is not trivial, and it would be dirt slow.