How to boot windows on new system from USB

[Cogan]

i have no optical drive on my new computer and wondering how i can boot windows 8.1 off of my usb drive. I already have they iso on the usb.

 

[USAFRet]

Create a bootable USB drive with this:
http://www.microsoftstore.com/store/msusa/html/pbPage.Help_Win7_usbdvd_dwnTool