Hey, I got a virus on my desktop and had to reformat my ssd. When I try to reinstall windows from a usb the only options I'm given are too troubleshoot or shut down. I've used a few programs to put the win 8.1 iso on a usb but none seem to give me an option to install win 8.1. Any thoughts on how to fix this? Or is it just a problem with the iso file I have?