The lenovo edge e220s recovery partition cannot burn to disk less than the file size of 9 gb. So I used a usb disk.. but trying to restore it dont read from usb; even @ f12 usb is selected fr boot. I tried to copy to a external hardisk (but the cbd file want to reformat and all data on external dusk will be erased (am I right). Or can I make another drive on same external harddisk. But any way I try use somebodys empty external drive but still the factory recovery dont want to copy. What to do. This is a win7, i5. Thankyou