Since Webroot is based on the web it does not use much device resources. It will not slow it down. Protects against all computer viruses, trojan horses, spyware... I have never had problems with it.
I gave webroot a five out of five. I've used webroot for over ten years. It's better than most web security software ware and user friendly. I will stay with webroot.
Wasn’t sure about this. Past experiences were not easy to load or use but it appears they have fixed those issues. After figuring a loading problem it uploaded great and scans are simple. Desktop, iPhone and iPads of various years.