Solved Windows 8 activated but not activated?

I bought this computer 2 years ago brand new from best buy with Windows 8 already installed. Haven't had any issues at all up until today. Installed updates from windows update, restarted, and was told it failed to configure the updates. Now the action center is displaying "Activate Windows now (Important)". I'm still using Windows 8, I haven't upgraded to 8.1 or anything. If I click on the message in action center it just brings me to another screen saying "Windows isn't activated" with "Enter a new product key to activate Windows." underneath the previous message, from there options are "Activate with a new key" or "Buy a new key". Says current edition is Windows 8, and Current product key not available. However, under Control Panel, System and Security, System, Windows activation section at the bottom says "Windows is activated". I wouldn't know how to find my product key, and I'm not very tech savvy but any help with this is appreciated. Thanks.

Alright it seems I've solved the issue, after doing a bit of research I stumbled across a program known as "Belarc Advisor" which allowed me to find my product key, after inputting it, the action center message went away. It is now saying Windows 8 is activated, displaying my product key and telling me the date I initially activated it - 1/2/2013.