First of all, what is Webroot? Webroot is one of the most trusted antivirus brands in the USA. Its virus protection has won many awards. Webroot uses cloud-based technology to block Viruses and various Malware. The most fascinating feature of Webroot antivirus is, it can scan your device 60 times faster than another popular antivirus. This helps to save your precious time. It is also available for Android and iOS devices. Now we will see how to install and run this software on your PC.