As an MSP who helps companies protect their networks from malware/virus attacks we use threatwarriors products very often for this purpose - it's easy of using (easy setup) with great support team behind that makes things easier when you need help or have issues solving them yourself! I don't like how every new update seems not compatible all at once so sometimes there are problems while updating your system but they will be fixed soon enough after few updates by releasing another version which solves those problem again without any manual work required! It also blocks some stuffs as well if needed even though its whitelisting option can do same thing too just no 100% sure about what gets blocked because i haven´t used blocking options yet myself only protecting my client computers against viruses etc..