I find myself doing this over and over again, so I figured it would be worthwhile to post. Below you’ll find a really useful way for installing a Windows O/S from a bootable USB device. I am particularly dependent on USB drives, as I have a Lenovo X61 Tablet that doesn’t have a CD/DVD-ROM (unless I’m docked, but I’m hardly in the office).
A couple of notes:
Without further ado, here are the steps:
list disk (FIND YOUR USB DISK)
select disk 1 (OR WHATEVER YOUR DISK NUMBER IS)
create partition primary
select partition 1
You should now be able to use this USB drive to install a new O/S. Good luck!