content: [on my mother's computer, you simply can't get rid of the "free upgrade" notification.]  I laughed at this, but then felt immediately bad for your pain because I went through it myself, and pity you for upgrading to 10 because of it and you probably were very annoyed at it.  This is because she installed an optional update called KB3035583 that is a windows 10 popup reminder.  Untick install optional updates automatically, and read more info on all of them instead, and you will find yourself with 1/4 or less of those updates because they are N/A or trash like this pop-up.    To fix this problem, you simply had to right click command promp and click run as admin, then type WUSA /UNINSTALL /KB:3035583 and hit enter. Or if you prefer more graphics, you simply go to a search engine and type in: optional update how to get rid of windows 10 notification.  Maybe it helps somebody else in this situation reading this if not you.