Windows 10: Windows Defender has a market share of 50%

Microsoft integrated the security solution Windows Defender Antivirus deeply in the Windows operating system. It is enabled by default on the company's Windows 10 operating system so that it can protect devices from the moment they are booted for the first time.

Previously, systems did not really have protection until users decided to install antivirus solutions on devices.

Microsoft revealed recently that Windows Defender Antivirus has a share of more than 50% on Windows; the solution is the primary antivirus solution on more than 500 million Windows devices and growth continues.

The market share of Windows Defender Antivirus makes it a prime target for attacks that bypass its protections. If an attacker manages to find a way through the defenses offered by the security solution, a large part of Windows systems would be vulnerable as a consequence. Kaspersky called Microsoft out in 2016 stating that Microsoft's integration was anti-competitive.

Microsoft told ZDnet that it predicted that Windows Defender Antivirus would become a high priority target and that it invested in defensive mechanisms to improve protections. In Windows 10 version 1903, Windows Defender got a new anti-tamper protection feature, and it uses a sandbox since 2018.

The most recent test on AV-Test, an independent test site for security solutions, awarded Windows Defender Antivirus a perfect score. Microsoft's security program got the perfect score in protection, performance, and usability.



Granted, it was not the only tool that received a perfect score in the test. Three third-party security solutions -- Norton Security, Kaspersky Internet Security, and F-Secure Safe -- managed to get a perfect score as well. Five additional security solutions got recommendations as well.

Windows Defender Antivirus may be the default security solution but it is designed to disable itself automatically when an administrator installs another security solution on a Windows machine.

No antivirus solution offers 100% protection against all threats; it is clear that Windows Defender has improved over the years. One of the program's main advantages is that it is deeply integrated in the operating system. Third-party developers face problems sometimes when Microsoft releases new versions of Windows.

Avast Antivirus users ran into issues frequently in recent time on Windows 10. In 2018, some reported that Windows would boot into a blank desktop after an upgrade, and in 2019, systems with Avast business solutions installed would become unresponsive after update installation. Other security solutions, e.g. by McAfee.

Closing Words


Windows Defender, which soon may be called Microsoft Defender, is getting better with every update. Is it enough? What is your take on the development? (via Deskmodder)

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Market Share May 2018


Here are the charts from NetMarketShare and StatCounter.

NetMarketShare suggests that W7 & W10 are flat.
StatCounter shows a big increase for W10 increasing and corresponding decrease for W7.
(You'll need to click several times to see it full size)




Data from NetMarketShare
Data from StatCounter
Note:
If you visit the NetMarketShare site, you'll notice that the info listed in the table does not match the data points on the graph. *Confused

 

Market Share April 2018


Here are the charts from NetMarketShare and StatCounter.

NetMarketShare suggests that W7 increased & W10 decreased. *Confused
StatCounter shows W10 increasing and W7 decreasing.
(You'll need to click several times to see it full size)


Data from NetMarketShare
Data from StatCounter
Note:
If you visit the NetMarketShare site, you'll notice that the info listed in the table does not match the data points on the graph. *Confused

 

OS Market Share January 2018


StatCounter's methodology suggests that W10 will overtake W7 this month (desktop worldwide).