Install Windows 7 from USB Stick

This guide works fine if you have vista or windows 7 installed on a computer.

Then you will be able to configure a USB stick of at least 4 gig to function as a bootable installation file for windows 7 without having to download any tools or application. You just need to use standard features in Windows Vista or Windows 7 in combination with a boot app on the windows 7 source.

I tried this and it works great and it is a much quicker install compared to DVD.