Antivirus is an important software that you must have on your personal computer. There are numerous hackers, cybercriminals, and scammers that you need to keep our data protected from. There are some good antivirus software 2021 has to offer, and we will be talking about the five best options that are free.

Avira Free Antivirus
This is one of the best antivirus options from Avira, mainly because the performance is decent and it is free to download.

Bitdefender Antivirus Free
Although free, this antivirus has removal rates that have exceeded expectations, scoring 100 percent on malware detection. It runs in the background without any disturbance to the functioning of your computer, and you will get notifications only for serious concerns. The scanning of the device is also relatively faster, and there are no interruptions even when you’re doing some heavy programming. The scanner is cloud-based and provides real-time protection.

AVG Antivirus Free
AVG is a more far-reaching antivirus software as compared to the other options. It actively searches for malware and viruses. It also identifies and blocks links that are suspicious, and prevents downloads that may cause harm to your computer. Additionally, it is great for Android devices and works quite well on Google platforms too. 

ZoneAlarm Free Antivirus
This is a free antivirus software that works through different areas, including firewalls and malware scanning. It also addresses data loss and identity theft, which makes it more beneficial to some people. You can back up your data with the help of a cloud backup service and also encrypt it for online usage. 

Panda Free Antivirus
Panda Free Antivirus is designed for Windows and Android. It can detect more adware and ransomware files as compared to several other antivirus options. Notifications can be suspended when you’re watching a movie on a full screen or playing a game. There are certain limitations with the free option, which can be taken care of with an upgrade.