6 best antivirus tools with unlimited validity [2020 List]

Ivan Jenic
by Ivan Jenic
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Do you want an antivirus with unlimited validity? Or, you prefer an antivirus which is free for life? Read on! This post is meant just for you.

Antivirus has become an essential tool for every computer as malware and virus threats increase daily. Everyone has a priority to keep their PC protected from malware and viruses. The majority of malware threats enter your PC from the Internet either when visiting infected websites or downloading infected programs.

However, it is essential to have an antivirus program on your PC. Thankfully some of the antivirus solutions are free and have lifetime validity. The most popular antivirus tools offer free versions for personal use while offering premium versions with extra features for professional and business users.

Antivirus software with unlimited validity for Windows 10


Bitdefender Antivirus free edition 2017 (recommended)


antivirus with website blockerBitdefender Free incorporates the core malware detecting components of the premium version but lacks some of the additional security features. Notwithstanding this is one of the best free antivirus currently in the market. This Bitdefender 2018 edition is compatible with Windows 10.

  • Installation and user interface

The installation process is quick and easy during this process it’s scans for existing malware on your PC. After installation you have to sign up for a Bitdefender account to activate it which is easy to do.

Bitdefender free edition has a very simple user interface with the menu properly arranged. You can run full system scan, scan specific files and folders. You can also access a timeline of recent activities. When you run a scan, a progress report appears in the event timeline.

  • Web browser protection and anti-phishing features

Bitdefender protects against phishing attacks and detects fraud and Internet scam from phishing websites. Phishing websites mimics banks, online transaction sites and game websites while conning visitors to insert their bank login credentials which is used to defraud unsuspecting visitors. It also gives you reports that it has blocked phishing attempts or fraudulent attempts on your PC.

Bitdefender also has a secure gamer mode whereby it turns of interruptions without sacrificing security when users are playing video games or in full screen mode for presentations.


  • Good antivirus protection
  • Excellent anti-phishing features
  • Easy to install and use


  • Lacks numerous features seen in the premium version

Bitdefender Free 2018 edition gives good basic antivirus protection with excellent detection and anti-phishing results but lacks most of the features that are available in the premium version. It is a good antivirus to install to give your PC decent protection.

Read more about Bitdefender here.

You can also buy Bitdefender 2018 for permanent updated protection of your data.

World's best antivirus
bitdefender 2019 product image
  • Great price plan
  • VPN included
  • Best Windows compatibility
  • Awesome customer support

Kaspersky Free

Microsoft Security Essentials vs Kaspersky

Kaspersky is a popular antivirus that provides powerful antivirus malware fighting technology all for free. It is AV-Test certified with high independent testing lab results in detecting and eliminating malware threats. The new Kaspersky free gives the premium power of the antivirus minus a few bonus features available in the paid version.

  • Installation and user interface

Following the custom of most free antivirus, Kaspersky free is only free for personal use. After installing, you must create a Kaspersky account to fully activate the antivirus.

It also installs a toolbar on browsers such as Firefox, Chrome and Internet Explorer. The antivirus automatically updates antivirus database signatures during installation.

The user interface main menu looks like the premium version as it displays all six icons available in the premium suite which is (scan, Database Update, Safe Money, Privacy Protection, Parental Control, and Protection for All Devices).

The major difference between the two versions (i.e. free and premium versions) is that only Database update and Scan are enabled in the free version with the others only available with the premium version.

Read Also: 8 best antivirus software with encryption to secure your data in 2018

  • Web protection and Computer protection features

Kaspersky free scans files in real time when accessed by different process. It has a website protection features that filters URL while checking for dangerous websites and downloads. The antivirus also monitors instant message and emails for malicious attachments and phishing messages. The protection tab enables you to toggle the feature on or off but it is advisable to leave it on for maximum protection.

Kaspersky also has anti-phishing features which blocks out phishing websites. It also gives alert for phishing websites and dangerous URL. For malware-hosting sites, the warning page reports “dangerous URL.” For phishing pages, it lets you know about a “threat of data loss.”


  • Excellent detecting features.
  • Takes short time to scan
  • Excellent anti-phishing feature.


  • Lacks direct tech support
Essential for Windows
kaspersky website logo
  • Blocking ransomware, cryptolockers & more
  • Preventing cryptomining malware infections
  • Real-time protection

Avira Antivirus Free


antivirus with unlimited validityAvira is a worldwide renowned antivirus giant which is very effective in protecting devices from malware and also boost system memory. The Avira Free edition has great features with its on-demand scan and real time protection.

Avira Free is used by millions of people worldwide. Avira Free has excellent lab test scores in detecting and eliminating malware.

  • Installation and user interface

Avira Free user interface window has a white background with a menu on the left and arranged panels that offer information and access to features. When you click on the PC protection menu you can run a scan, toggle real time protection and customise configuration settings.

One major disadvantage of the free Avira Antivirus is that majority of the menu in the internet protection panel are not accessible unless you go premium. Useful features like Web Protection, Mail Protection, and Game Mode are disabled in the free version.

  • Web protection and anti-phishing features

Avira free has a good web browser protection which supports only chrome and Firefox. The antivirus successfully filters suspicious URL and stops this threats b preventing access to the browser application. It also cuts off downloads from suspicious websites and gives an overall good protection rate.

In addition, this antivirus program has an anti-phishing browser safety extension that checks for malicious traffic which lures users into phishing sites that try to steal login credentials by posing as legitimate websites. It gives good protection against this threat by blocking such websites.

Avira Free also scans the users system for any software with missing security patch and prevents against exploit attacks which are advantage of unmatched system security vulnerabilities.


  • Excellent in detection and elimination of malware
  • Good anti-phishing and Web browser protection features


  • Extremely slow full scan
  • Browser protection limited to only Firefox and chrome

Finally, Avira free is an ideal antivirus which gives decent protection although the web browser protection is limited to only chrome and Firefox. There is a myriad of features which makes it stand out from other antivirus programs. But the only major problem is the slow full scan.

Next-Gen AI Technology
Avira Antivirus website logo
  • 300 thousand threats blocked per day
  • Endpoint Scanning of malware
  • 100 million sensors for detecting threats

Avast Antivirus

antivirus with unlimited validityIf you are looking for a free antivirus that offers basic protection and gives many premium products such a network security scanner, a password manager and a secure browser; then Avast Free Antivirus is for you.

Avast Free offers many features that are premium features in rival software which makes it a unique antivirus software.

  • Installation and user interface

When installing Avast offers to install Google Chrome as part of your browser which you can decide to opt out. The installer also opens a page detailing how Avast uses your non personal data and how to opt out.

Avast antivirus user interface opens to a dark grey window which consists of a menu by the left side. On clicking on the menu it opens to a page where you can select Protection, Privacy, or Performance. These three pages contain all the icons of the features found in the antivirus. The icons with the padlock sign are not available for the free version.

  • Web protection and anti-phishing features

Avast web protection features is excellent and filters URL and blocks it from being accused by your browser. Avast also deletes downloads from suspicious websites. The antivirus has a feature called CyberCapture which takes advantage of its huge database of good and bad files from its millions of users worldwide.

This antivirus program also detects and blocks phishing websites which come in the shape of a bank website or PayPal to gather users’ login credentials. Avast does an excellent job in detecting and blocking these websites. The tool blocks them by covering the web page with a warning and also gives a popup sound with an alert identified as phishing.

Read Also: 6 best antivirus for corporate use to protect your business data

  • Wi-Fi Inspector feature

Avast free has a Wi-Fi inspector which scans your Wi-Fi network for security problems and also reports security status on all devices detected on your network.

  • Password management

Password management is an unexpected feature for a free antivirus. This program handles all the basic functions, and does them well, but that’s as far as it goes.

The antivirus also offers password management which is a rare feature in free antivirus. Users can create a main password that protects all your website passwords. Avast gives advice on how to create a strong password and accepts on password that is very strong which is quite good.

Avast also manages your login credentials when you enter secure sites on revisiting this site’s it offers to fill your saved login details. It also allows saving information for multiple accounts on a single site by clicking and icon in the username section to get a list of all your choices.


  • Excellent detection of malware and viruses
  • Good anti-phishing and Web browser protection features
  • Extra features like Wi-Fi Inspector and password management


  • Some features need to be purchased separately
Essential antivirus protection
avast logo official
  • Secure password manager
  • VPN
  • WebCam Shield
  • Browser Cleanup

AVG free antivirus


antivirus with unlimited validityAVG is a popular antivirus used by over 400 million people and was recently acquired by Antivirus Giant Avast. AVG is well known for their free antivirus software which offers good protection against malware and virus threats.

  • Installation and user interface

Avast antivirus comes with AVG Zen which is the management and launching tool that gives an overview of the antivirus on your computer. The Zen main windows has four panels which are utilized as antivirus, VPN, PC tune up and Web Tuneup.

Each of this panel gets fully filled or partially filled depending on if you install all possible protection in that panel. Each panel indicates green if all is installed properly while it changes color if not installed well.

On installing the free antivirus it’s opens into a main window with two panels. The Basic protection panel includes icons for web, email protection and Computer protection which are enabled. While the Full protection panel consist of protection for private data, protection against hackers’ attacks and protection during online payments which are only enabled when though upgrade to premium.

Also Read: 5 antivirus with highest detection rate to nab sneaky malware

  • Web browser protection and anti-phishing feature

AVG blocks malicious software and threats from infecting your PC and delete malware downloads before it completes. When a new file is detected by AVG, it sends it to AVG headquarters for analysis and checks whether it is a malware or legitimate file. AVG has a decent anti-phishing feature which detects and blocks phishing websites although it’s not as effective as other rival software such as Bitdefender and Kaspersky


  • Good malware and virus detection
  • Good web browser protection feature


  • Average anti-phishing feature
Protects your PC forever
AVG Antivirus website logo
  • Block unsafe links, downloads, & email attachments
  • Stop viruses, spyware, ransomware
  • Real time-security updates

Panda Antivirus

panda antivirus unlimited validity

Another completely free antivirus that you might want to consider is Panda Antivirus. This antivirus offers solid protection with 100% detection ratio, so your PC should remain protected from all kinds of threats.

This antivirus is straightforward to use, and once you set it up, you don’t have to deal with configuration or updates, the software will do most of the configuration for you. In addition to the antivirus, there’s also a firewall available so you can control which applications have access to the Internet.

Another feature available in Panda Antivirus is a built-in VPN. The VPN is quite humble in terms of functionality, and it offers one virtual location and a daily bandwidth of 150MB. As you can see, the Free version offers only the most basic features which should be enough for most average users.

There are several paid versions available, and they offer features such as Wi-Fi protection, parental control, identity protection, ransomware protection, file encryption, and password manager. Overall, Panda Antivirus is a solid free antivirus, so if you need basic protection for your PC, feel free to try it out.


  • Completely free
  • 100% virus detection ratio
  • Antivirus and firewall
  • VPN
Recommended antivirus
panda dome
  • Real-time monitoring
  • Personal firewall
  • Device management
  • USB Protection

If you want an antivirus with unlimited validity, be sure to try out any of the antivirus program we mentioned in this post. Feel free to comment below.


Editor’s Note: This post was originally published in February 2018 and has been since revamped and updated for freshness, accuracy, and comprehensiveness.