After unsuccessfully trying to uninstall SpyHunter 4 on numerous occasion, I finally did it. Try the following;
(1) start from the home page of Spyhunter 4.
(2) Click on settings (find it on the left-hand side).
(3) A new window will open.
(4) Deselect all the options(remove all the ticks).
(5)Exit(close) the Spyhunter 4 page.
(6) NOW UNINSTALL SPYHUNTER 4.................(a) Click on Start (b) Click on Control panel (c) Locate Programs and Features (in the Control panel) and open it. (d) Locate Spyhunter 4 in Programs and uninstall it. (e)Answer the survey on why you leaving Spyhunter and submit it. Done