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Microsoft Security Essentials is the Most Used Antivirus Worldwide

Microsoft Security Essentials is the Most Used Antivirus Worldwide

According to a report from OPSWAT (via Softpedia), the free Microsoft Security Essentials is the most used antivirus worldwide, in the second quarter of 2011 (March 23 to May 15).

Softpedia reports:

Microsoft’s free antivirus offered to users of genuine Windows operating systems including Windows 7 RTM and SP1, has been found to run on no less than 10.66% of the 43,000 computers around the world covered by the OPSWAT’s Q2 Antivirus Market Share Report.

But when comparing vendor share, the situation looks a bit different:

“AVAST Software and AVG Technologies both top this quarter’s worldwide antivirus market with 12.37% each. AVAST shows a decrease from its leading 16.19% last quarter, which could be due to a shift in the percentage of data originating from various countries. Avira and Microsoft rank third and fourth with 12.29% and 11.24% of the market, respectively,” OPSWAT notes.

OPSWAT stresses that the growth is due to Microsoft's move to push the security solution through Windows Update.

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