photos of fighters for the truth

Our mission is to bring truth back to the internet.Read more

2021 Rankings

Free Antivirus Software

Last updated on November, 11

Are you looking for free antivirus software? Protect your computer and data from viruses with these top-rated, free antivirus programs. We ranked the best free antivirus software that would suit all your wants and needs. Go ahead and download one to finally secure your computer today!

Free Antivirus Software illustration

12 services ranked

Our ranking methodology

#

2

Avira logo

Avira

4.26

3,726

1,583

5,309 reviews

price starts:

$ 2.03

per month, $72.99 per three years

Visit Website

price starts:

$ 2.03

per month, $72.99 per three years

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

Cache Remover

Update Manager

Automatic

Customer Experiences:

pro

  • Free and easy to install

  • Easy to set up

  • Useful protection

con

  • Slow down on laptop

  • Lock is not working

  • Difficult to remove the program

pro

Free and easy to install

con

Slow down on laptop

pro

Easy to set up

con

Lock is not working

pro

Useful protection

con

Difficult to remove the program

#

3

panda logo

panda

4.24

1,708

738

2,446 reviews

price starts:

$ 2.19

per month, $26.24 per year

Visit Website

price starts:

$ 2.19

per month, $26.24 per year

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

History Remover

Update Manager

Automatic

#

4

TOTALAV logo

TOTALAV

4.16

3,408

1,592

5,000 reviews

price starts:

$ 1.58

per month, $18.96 per year

Visit Website

price starts:

$ 1.58

per month, $18.96 per year

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

Cookies Remover

Update Manager

Automatic

Customer Experiences:

pro

  • Offers various disk cleanups

  • Provides valuable assistance

  • Great updates and security

con

  • Randomly freezes and shuts down

  • Disrupts function of majority applications

  • Terrible customer support

pro

Offers various disk cleanups

con

Randomly freezes and shuts down

pro

Provides valuable assistance

con

Disrupts function of majority applications

pro

Great updates and security

con

Terrible customer support

#

5

Comodo logo

Comodo

4.16

3,406

1,593

4,999 reviews

price starts:

$ 29.99

per year

Visit Website

price starts:

$ 29.99

per year

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

Cache Remover

Update Manager

Automatic

Customer Experiences:

pro

  • App is amazing

  • Top of the line protection

  • Best antivirus

con

  • Recent update totally sucks

  • Crashes every time

  • Drains your battery too fast

pro

App is amazing

con

Recent update totally sucks

pro

Top of the line protection

con

Crashes every time

pro

Best antivirus

con

Drains your battery too fast

#

7

Bitdefender logo

Bitdefender

4

3,252

1,748

5,000 reviews

price starts:

$ 2.65

per month, $63.69 per year

Visit Website

price starts:

$ 2.65

per month, $63.69 per year

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

History Remover

Update Manager

Automatic

Customer Experiences:

pro

  • Makes your phone secure

  • Finest Antivirus on the market

  • Possesses a personal firewall

con

  • Some files cannot be detected or removed

  • Doesn't provide a free trial

  • Single account can only have 5 devices

pro

Makes your phone secure

con

Some files cannot be detected or removed

pro

Finest Antivirus on the market

con

Doesn't provide a free trial

pro

Possesses a personal firewall

con

Single account can only have 5 devices

#

8

TREND MICRO logo

TREND MICRO

3.98

3,230

1,769

4,999 reviews

price starts:

$ 19.95

One-time payment

Visit Website

price starts:

$ 19.95

One-time payment

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

Cache Remover

Update Manager

Automatic

Customer Experiences:

pro

  • Doesn't lag on the phone

  • Excellent security

  • Great antivirus protection

con

  • Suddenly stopped working

  • Tablet disaster

  • Interface is not user-friendly

pro

Doesn't lag on the phone

con

Suddenly stopped working

pro

Excellent security

con

Tablet disaster

pro

Great antivirus protection

con

Interface is not user-friendly

#

10

Avast logo

Avast

3.79

3,066

1,984

5,050 reviews

price starts:

$ 7.49

per month, $89.99 per year

Visit Website

price starts:

$ 7.49

per month, $89.99 per year

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

Cache Remover

Update Manager

Automatic

#

11

McAfee logo

McAfee

3.75

3,281

2,178

5,459 reviews

price starts:

$ 1.25

per month, $29.99 per two years

Visit Website

price starts:

$ 1.25

per month, $29.99 per two years

Multiple Devices

Website Security

Real-Time Protection

Cleanup Tool

History Remover

Update Manager

Automatic

You’re seeing 8 of 12 Free Antivirus Software

Frequently Asked Questions on Free Antivirus Software

What is the best free antivirus software?

There are a lot of antivirus software for viruses, but not all will be protecting against what you need it to. It all depends on the kind of virus you're looking to get rid of. The features to have the best free antivirus are:

Standard Features:

1. Protects your computer, tablet, and smartphone from viruses.

2. Scans for malware and other threats to your devices.

3. Keeps you safe when browsing the internet.

4. Monitor all your devices with one account.

5. Scans for threats in real-time.

6. Updates automatically.

Emotional Benefits:

1. Keep all of your data safe.

2. Spend less time worrying about security issues.

What are the methods used by free antivirus software?

Heuristic-based Detection

Heuristic-based detection is a malicious software detector that operates in an automated manner by finding computer viruses based on file characteristics and heuristic rules. It uses signature, behavior, and pattern recognition to detect new malware. Heuristics are the patterns seen when looking at the frequency of specific code instructions with other instructions. These can be any behaviors or artifacts left behind by programs that exploit system vulnerabilities but don't fall into one clear category or seeders and payloads from a trojan horse.

Signature-based Detection

Signature-based detection is a form of malware detection that looks for common attributes among malware. It's called signature-based because the hallmark signatures used by malware identify with this form of protection. These signatures are pieces of code left behind after infection, and it makes it easy to recognize new variants without having to do complex analysis. Recurrent patterns in these code fragments also allow analysts to pinpoint variations that might be experimental or debug builds.

Behavioral Detection

Behavioral detection is a technique used in modern antivirus software to flag malware. It relies on the malware attempting to modify its behavior when it detects that it runs in a sandbox environment. It also depends on analyzing administrative tasks of the operating system and API functions being accessed by certain programs. The anti-malware "agent" will then compare what it detects against its behavioral database of known bad behavior for an automated response when necessary.

Cloud Antivirus Detection

Cloud antivirus requires an internet connection to collect data, which is then transferred to and processed by a cloud server. It generally spares your additional computer processing by running all detection on the server.

Sandbox Detection

Sandbox Detection is a technology that allows for protection against malware using a code simulation to tell if software processes or files are running in safe environments. This technique will scan the application process and compare its behavior to what a sandboxed environment would look like. This enables detection of malicious code on an ongoing basis, bypassing AV systems designed to detect known signatures or byte patterns.

Machine Learning

Machine learning requires internet access to examine application code and assess if a piece of software is harmful or not based on its understanding of malicious and benign programs. It is an artificial intelligence solution that can effectively combat both new and old threats, mainly when used in conjunction with other security protocols.

Is antivirus software compatible with all operating systems?

No, not all antivirus software is compatible with all OS; it depends on the service which OS is designed to only work on the software. Many users of different operating systems such as Mac, Linux, and Windows get stuck in a loop due to the antivirus service providers refusing to develop updates for the products' compatibility with these systems.

How does free antivirus software work?

Free antivirus software makes use of a system's built-in scanner that goes through files that have been saved on the computer and checks them for viruses. It uses cloud computing to turn your computer's unused power into resources. It can be used to catch malware that the regular virus scanning programs might miss. Free antivirus software, combined with automatic updates and a comprehensive backup system, also creates a kind of "immune system" for your PC. It will prevent malicious files from being executed by blocking access or deleting them. However, as with any form of homeopathic treatment, free antivirus software cannot fight every single potential threat or infection. If you come across something unusual or suspicious on your PC, then you should continue using conventional methods to remove it.

What types of malware does free antivirus protect against?

Depending on the service, free antivirus software protects against viruses, trojans, worms, adware, and other digital threats. It detects new variants of malware for your security and protects emerging types of attacks like zero-day exploits. It detects 99% of all viruses and malware so you can surf safely online. Some features protect against data theft or manipulation, such as ransomware, to trick users into paying the hacker ransom fee. It also helps guard your privacy at startup times by controlling cookies and social media tracking codes.

Does free antivirus software expire?

Antivirus software is not a one-time use and does not expire. It is just constantly updating the virus definitions, which should protect your computer for long periods. Free antivirus software will prompt you to upgrade every time, and these upgrades only offer more in-depth protection, not necessarily something the current software doesn't already cover. But if your computer remains idle for too long without a restart, future fixes could be missed because the update files can't reach the system without a reboot.

Which type of keylogger does free antivirus software cannot detect?

Free antivirus software cannot detect hardware keyloggers. Hardware keyloggers have the advantage of being able to log in more than the keystrokes and capture any other data that you input on your computers, such as browsing history and screenshots. It can also capture data from a device's physical memory or virtual memory (RAM). These are the vectors that potentially contain sensitive information for hackers to steal.

Does free antivirus software detect spyware?

Yes, antivirus software can detect spyware by catching transmitted data first and then combining it with a comprehensive scan of the data on your device. Differentiating between spyware and other programs is difficult for antivirus software. Many are used for innocent purposes, even if it is misused to transmit personal information without your knowledge or permission.

How to install free antivirus software?

Having installed free antivirus software on your laptop, PC or smartphone helps you save up money and protect your gadget from viruses and other malware. To install free antivirus software:

Step 1:

Check to see if your computer is compatible.

Step 2:

Download and install the free security software.

Step 3:

Install any necessary updates.

Step 4:

Create a password for the software.

Step 5:

Select the level of protection you want. It is recommended to select a higher level of protection such as "high".

Step 6:

Confirm that your device is on "high" protection to avoid future problems with viruses.

How to disable free antivirus software temporarily?

Disabling antivirus helps you procrastinate less because you don't need to scan any suspicious files, but disabling the antivirus may have been risky. To disable free antivirus software:

Step 1:

Open Control Panel.

Step 2:

Click the "System" icon.

Step 3:

Go to "Hardware and Sound".

Step 4:

Click on Device Manager.

Step 5:

Expand the "Non-Plug and Play Drivers" folder.

Step 6:

Find your antivirus software, right-click it, and select "Disable" (e.g., for Norton AntiVirus).

Step 7:

Select "Yes" to confirm the action.

Step 8:

Repeat steps 6-7 if necessary.

This site uses cookies. By continuing to use this website, you agree to their use. Read privacy policy for more info.