I recently been seeing a lot of nice laptops for sell, but I notice something very concerning. I notice that some sellers actually takes a photo of the laptop showing the COA sticker underneath the laptop. My question is, would it be safe to purchase a laptop from a seller that takes a picture of the COA (Taking photos of the laptop) along with other photos of the laptop. I mean with everyone (viewers) being about the see the product key on the laptop with someone may try used that product key. Will the laptop still be able to register Windows 7 on it? Or will the computer OS be marked as invalid or not genuine? Does it affect the laptop in anyway? P.S. I know that computers now have the product code (key) embedded into the motherboard.