Here is a copy of a post elsewhere - "Asus has a serial number sticker on the back of the cover page of the warranty book".
March 22, 2012 4:19:45 PM
My problem is my sticker fell off some where in the sands of Kuwait. Harsh environment here. Is there any way to locate it in the virtual environment? If you right-click computer then go to properties you only get the MS Product-ID. ASUS doesn't seem content with using that to help me get a restore disk. Suggestions?