i don't use any AV for this computer (besides what microsoft supplies) so i'm not sure AV was the cause...
i tried to install it twice last night with the same results. the machine is one of those new atom-based compute sticks with 32-bit W10 installed. i'll try it again and post a screen capture; is there a log someplace that might shed some light on what went wrong?
i did uninstall it from the Applications control panel and when it was finished it said there were some files that were not removed. the installer itself does not seem to have an "uninstall" option.
thanks
rob