Hello, My E510 desktop needs the xp mse os reinstalled, and I have the dick form Dell. BUT, the boot sequence menu lists only hard drive , usb/floppy, and cd as options available. The system has no cd drive (only master and slave optical dvd). So there is no way to boot the dvd I have from Dell. Unless there is a way to put the os on a usb drive, which is listed as available in the boot menu. So how does one create a bootable USB drive with the dell reinstallation so on it??