How do I install windows 8 from a usb even though my old computer is mac?

[NautilusOctopus]

What can i use to make a bootable usb drive to install windows 8.1. My old comp is a mac and I can't find anything to make it bootable.

 

[Chicano]

How to Install Windows on a Mac With Boot Camp (MACs from, 2010 to 2015)
http://www.howtogeek.com/186907/how-to-install-windows-on-a-mac-with-boot-camp/

Quote: "if you have an older Mac from 2009 or earlier, you won’t be able to install Windows 8"

List of Mac computers that support Windows 8.1
https://support.apple.com/en-us/HT201457