How To Put Windows On A Flashdrive

[Gubster]

I built my computer and I bought a product key for windows 8.1 and would like to know how to get windows on a usb with the product key because my computer doesn't have a disk drive?

 

[shadows1234]

i made a guide on how to do it here it is http://www.tomshardware.com/faq/id-2637355/make-bootable-usb-drive-windows-linux.html
and if you dont have a iso contact microsoft for a link to theirs which is just for making a bootable usb and installtion you enter your key once prompted