Windows 7 install with USB

http://www.intowindows.com/how-to-create-bootable-windows-7-usb-to-install-windows-7-from-usb-flash-drive-using-windows-7-dvdusb-tool/

http://www.intowindows.com/how-to-install-windows-7vista-from-usb-drive-detailed-100-working-guide/


http://store.microsoft.com/Help/ISO-Tool