The problem is https://support.microsoft.com/en-us/kb/3035583 which was installed without authorization despite my settings that say to ask permission first. I just deleted it, but how do I keep this malware off my computer in the future?
@ Bill,
Yours is a different problem since KB3035583 is the Windows 10 nagware. You can prevent that from installing and even deleting anything related to it which has already been downloaded to your system by installing this free tool: http://blog.ultimateoutsider.com/2015/08/using-gwx-stopper-to-permanently-remove.html