I turned on my computer and got a message pop up saying my Windows Vista product key was not vaild. I've had my computer for like 3 years and have not done anything with a product key or anything. So then it gives me 3 links, one to run it with limited funtionality, another to enter in the product key and the last one to contact gateway. I tried to re-enter the product key and it still doesn't work.
What do i do?
What do i do?