Although Windows 11 has built-in Microsoft Defender anti-virus software like Windows 10, most people still prefer third-party anti-virus software, such as Kaspersky, Trend Micro, etc. At this time, many people will worry about whether the capabilities of these anti-virus software will become worse after upgrading? Is the compatibility good? The good news is that a well-known foreign security research company recently conducted relevant actual measurements, and the results show that even though Windows 11 is still a preview version, the compatibility of these third-party anti-virus software is completely fine, and it still has very good anti-virus protection effects.

How compatible is Windows 11 with third-party antivirus software?
Recently, the foreign AV-comparatives security research company released a security report for Windows 11, which provides many security issues of Windows 11, including compatibility testing of third-party anti-virus software.
Their preliminary test results show that the anti-virus capabilities of third-party anti-virus software in the Windows 11 preview version are similar to those of Windows 10, which means they are just as effective.
AV-comparatives latest announcementReal-time protection capabilities test of various anti-virus software:

Although it has anti-virus capabilities, Windows 11 is still in the testing stage after all, and there may be some security risks. Therefore, they also mentioned that people who want to upgrade now must do so at their own risk and do not rely on anti-virus software.
In addition, after installing third-party anti-virus software in Windows 11, now when you open the right-click menu of a file, folder or hard drive, the “Scan this item to check for viruses” function will also appear, allowing you to scan files conveniently and quickly with one click:
Therefore, after upgrading to Windows 11 in the future, you can safely continue to use the currently installed anti-virus software without worrying about whether the protection function will be reduced.
Regarding the question that many people have about “will upgrading Windows 11 make the computer more secure?” AV-comparatives said that according to a report by ZDNet, the Windows 10 20H2 version launched a year ago actually has the hardware security features of Windows 11 built-in, which means that you can have it without upgrading, and users can manually turn it on. Therefore, if you have turned it on, it must be safer than those computers that have not been turned on.
Of course, Windows 11 also has some new security features added to the software, such as Windows Hello for Business, which is specially developed for enterprise users. However, overall, the changes for ordinary users will not be huge.
Source:Source: AV-comparatives
Source: KOCPC Chinese