App Review Can Windows Defender protect your computer against malware?

[Mercenary]

Content source

https://www.youtube.com/watch?v=ErxcY9wjr14

 

[Andy Ful]

Similar test like this one:
https://malwaretips.com/threads/windows-defender-vs-ransomware.98128/

And here is my joke about such tests :
https://malwaretips.com/threads/windows-defender-vs-ransomware.98128/post-856691

I am curious how one can deduce from such a test if the AV is good or not. In fact, it would be impossible even if the AV could block all the samples. The number of samples is too small and there is no comparison to other AVs tested on the same pule of samples. It is also possible that the tested AV could miss not one (like in the test) but many samples and still might get the result better than other AVs.