Quite often I get calls for my Computer Expertise that involve suspected infections of an individual PC. One of the first things that some sohisticated malware does is disable or at least cripple the antivirus that is installed on the machine. That’s the main reason I always recommend a thkird party online scan if I think the installed Antivirus Program is compromised.  I use and trust these two.

• Avast
• Bitdefender