My asus s500c notebook is stuck on the screen that says update could not be completed undoing changes dont turn off computer. It has been stuck on this for 2 days ive turned it on/off, held start button, pressed f8/f9 etc... and nothing has worked i called customer service and they told me there was no way to reset my computer and that i would have to pay $100 because my windows has been destroyed and i have to get a new one and that possibly could not work if my computer has another problem and its non-refundable so im basically completely screwed out of my computer unless someone knows what else to do HELP!