I tried with avast and Kaspersky free version but failed to remove that. I also used malwarebyte but did not work.
Of course free version of Kaspersky and Avast is not good. Try Kaspersky's paid version, I am quite satisfied with their internet security feature. In avast's case though, I think their paid version is also bad and their service is not worth its price.
Regarding Kapersky, the US government doesn't seem to like them. I'm not saying they're bad or that the allegations against them are true, but it's a factor you may want to consider before using their antivirus.
I just use Kaspersky as an example since I think their paid version of internet security is good(which I am using in my laptop). In my desktop PC(which I always use when doing crypto related things when I am at home), I use ESET Nod32 Antivirus.