You might not realize but a good antivirus software is needed for all computers. Even if you can’t afford some high-end security suites, there are many best free antivirus software that you can install. Free antivirus software from Avira, Bitdefender, and AVG are one of the most effective ones you can get. They offer simple interface and high malware detection rate.
https://fossbytes.com/10-best-free-antivirus-software-list-2017/