help me out pls

hey guys. so, my computer had some problems, so i used avast to get rid of them (problems involved maybe hackers through my camera, my emails etc). i got free trial until december and i solved those problems. however, just to make sure that they were actually gone, i downloaded another antivirus and did a check, and it said that i still had the problems. does this mean the avast did nothing? or that maybe the other antivirus doesn’t work because the pc has another antivirus (being avast)? the other antivirus is AVG AntiVirus Free btw. thank you

First there is very little to work with.
e.g.
What was found by Avast and what action did it take ?
What was found by AVG ?

Second you do know that Avast and AVG are now within the Gen Digital Group along with others and many of those are using the Avast scanning function. Which is why the above questions are important.