Free Upgrade for Norton Internet Security - is it a scam?

I'm new here, but I'm hopeful someone will be able to help me. When I logged onto my computer today, apparently Norton has expired; however, a free upgrade was offered (see screenshots below). Is this a scam? Hopefully someone will know. Looks legitimate, but I guess nowadays there are scams everywhere. I really hope I didn't blow it already by clicking on the initial page, although I didn't follow through with setup. Thanks for your time and help!