Bought a Lenovo T500 laptop on Ebay and a COA was not listed. But there on the bottom is a COA sticker with a key and some other numbers.
Problem: Although the key #'s are clearly visible the top area which says Windows 7 or Windows Vista is not readable at all. So I don't know which Windows version it's for. Is there another way to know since the Key is clear? Is there a subtle difference between the stickers?