C comp2017 Prominent Jul 5, 2017 2 0 510 Jul 5, 2017 #1 I have Windows Defender on my Dell 8.1 but am unable to turn it on.
190221 Reputable Aug 20, 2015 527 1 5,160 Jul 5, 2017 #2 do you have another antivirus installed currently? uninstall it if so. Any error messages? Upvote 0 Downvote