I just reset my Windows 7 Acer Aspire 5742Z laptop to factory reset which I have never tried before. Everything seem to go without a hitch, but when I looked to see if the Product Key was entered, as I was never ask about it during the factory reset. I noticed the product key that was installed was not the same as the product key printed on the bottom of the laptop. Could you please tell me if this is okay, that it will work alright? I tried to get information on YouTube (I’m a complete novice with computers) and I notice there was a lot of videos on how the change the product key, will I have to change the product key that was installed to the one stamped on the bottom of my laptop. And advice would be really appreciated.