Avast has an active and significant user base and offers various powerful tools. Installation is easy and straightforward. It is www.antivirus-software.org/use-best-antivirus-software-to-protect-your-device not required to upgrade to a premium subscription however, a complete system scan will have a noticeable impact on performance. The main interface is simple and sleek design with an option to scan in the middle and icons that clearly represent the different parts of the suite. Unfortunately, a desire to minimise the number of options on display has also led to certain features being hidden in the Explore tab and the text that is grey-on-white can be difficult for users with impaired vision. This free program is partially funded by ads and offers the option of installing partner software.