STOP, READ FIRST: selling as is THIS IS STILL SEALED but came from an estate sale, prior owner has passed on. Was purchased from Best Buy and was "activated at time of purchase" on their end, but has not been used yet (sealed/keycode is still covered). We do not know if Best Buy/Webroot retains activation forever? as there is a note to 'install immediately" on the cover , but this one has not been installed yet. It has been a few years since windows 8 was latest. If it is forever then there should be no problems activating it on Windows 8 OS (and probably earlier versions?) . Please research before buying. We are selling as you see it, as is,at fraction of original cost. if you have issues activating and need support you may be able to take to nearest Best Buy and explain the situation that prior owner passed on and have no receipt. We have no idea how helpful they may be or if they will give you an updated one if needed, just a guess. Please move along if you are not comfortable or familiar with all this. No returns no refunds