Windows Defender scored 17.5 points out of a maximum of 18 points, with 6 being protected, 6 being usable, and 5.5 being performance. With some improvements in the performance department, Windows Defender may become as good as Windows XP antivirus performance like leader Bitdefender and Kaspersky.
Windows Defender delivers perfect performance in defense against 0-day malware and detection of the popular 4-week malware. In the July and August tests, all samples wereMicrosoftAntivirus software detected and blocked. In terms of performance, Windows Defender has left a deep impression on all but one test. The app is popular at startupwebsiteThe impact on system performance when downloading files or launching an application is lower than the industry average, but on the other hand, it reaches a higher number when installing a popular application.
As for usability, Windows Defender has also achieved near-perfect results here. It generates a zero error warning or blocking when accessing the website, and only detects the legitimate software as malware by mistake once during the system scan. This only happened in the August test, and in July, it performed flawlessly. AV-TEST now lists Windows Defender as a top-of-the-line product, providing anti-virus certification and highlighting the advancement of Microsoft's advanced solutions.