Invalid Product Key after reformatting my laptop
Hi there. My father bought a Norton 360 4.0, 3-user pack half a year ago. And i've been using this antivirus ever since, with one of the product key. I've recently just reformat my laptop, and the product key that i've used previous was rejected. it was written there
" Invalid Product Key
The product key you entered is invalid. Please enter a valid key."
Can anyone please help me on this? thank you