Worldwide AntiVirus Market Share – Free antivirus products lead!

Oesis OK has released a report on the world-wide market share of the antivirus security software currently available in the market.

It is important to note that the free antivirus products Avast, Avira, AVG & Microsoft Security Essentials have captured the top 4 spots.

Microsoft, not typically associated with antivirus application success, has captured a significant share with their recent anti-virus solutions.

Inspite of their massive brand awareness, Symantec and McAfee have not not been able to translate this into  number of installs, vis a vis the free antivirus software!

Also worth noting is that Kaspersky’s Internet Security product suite is more popular than its individual anti virus application. Kaspersky is unique in this regard.

Symantec’s success on the vendor chart is explained by the appearance of 5 different Symantec products on this graph: Norton AntiVirus, Norton Internet Security, Symantec AntiVirus, Symantec Endpoint Protection and Norton 360.

A PDF version of the report is available for download here.

Oesis OK is part of the OPSWAT Group which also offer the freeware AppRemover.

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.


  1. Ruchir Bansal

    This site is not good, but outstanding. Brilliant writers. Meaningful content, intuitive-link to PDF page, not many sites care so much for time and convenience of others as much as I have seen, does this, few others.

  2. Fafaf

    avast number onee

  3. Because give chance to geek the option to install the essential. Obviously first line of defence from virus are ourself !!

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