I recently had to reinstall Windows 7 on one of my older PCs and I'm having trouble locating the product key. The sticker on the computer is worn out and unreadable. I've got a legitimate copy, but I just can't find the key anywhere. Does anyone know if there's a way to recover or retrieve the product key from the system itself, or perhaps a reliable tool or method that can help me locate it? Any advice on how to proceed would be greatly appreciated. Thanks in advance!