I saw in my update history yesterday on a less than six month old Asus laptop running Win 8.1 Upgrade, that Win 10 Upgrade failed to install. There seems to be a lot about this on computer sites, and Microsoft is saying that all this means is to wait for the notice from them to install. So I will wait. I don't want it to install before we are finished traveling this season anyway, so a few more weeks is fine. That is if the notice to install ever does come...