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#11
I reckon that's looking just as bleak, if your BIOS doesn't support booting from USB devices and you only have a CDROM drive, unless you buy a DVD ROM for it, there's no way of actually installing it. Infact, i assume the optiplex is running XP, if so you'd have to boot from a DVD to format the drive before installing W7 anyways, so USB would still be a no-go.