Eddy
2
It is not possible for any anti-malware software to protect you/your system if it doesn’t check certain things.
https://www.avast.com/eula
https://www.avast.com/privacy-policy
https://www.avast.com/faq.php?article=AVKB137
About the pop-up, you can disable them in the paid versions as has been told a huge amount of times on this webboard.
avast is NOT stalking you at all.