I want to download an os for my new computer

[Jconks58]

Can you copy windows 8.1 from a disk to a usb drive?

 

[basroil]

Can you copy windows 8.1 from a disk to a usb drive?

No, copying files will NOT work. Follow the instructions at http://windows.microsoft.com/en-us/windows-8/create-reset-refresh-media to make a USB with the newest build of 8.1