Windows Defender, which comes pre-installed on Windows 10 and Windows 11, is amongst the best antiviruses in 2021. That's according to AV-TEST, which is an independent IT security institute that performs various tests to rank antivirus programs based on performance, security and other factors. Germany based AV-TEST institute has released its best antivirus programs assessment report for the month of October 2021. It's worth pointing out that the result is for Windows 10 Home users and the security institute tested 21 security programs from various vendors, including Norton, Kaspersky and Microsoft. According to the report, AV-TEST tested Windows Defender, Avira, McAfee, Avast, AVG, and several other antivirus apps against various security aspects. For example, the organization tested these antivirus solutions against zero-day malware, cyberattacks, infected emails, and more. "We always used the most current publicly-available vers...