I had a windows laptop that bit the dust, but the hard drive works fine (booted up in another pc that wasn't mine as an external disk with my SATA to USB 3 adapter).
I'd like to use this drive on my iMac (2011 27 inch) without reformatting it and without having to go out and buy a new windows license key. Is there a way I could use the existing and functional license in boot camp, or better yet boot the OS from the drive?