>>> Any suggestions for a good quality virus scanner in which I can have some confidence in regarding a reasonable choice in how it operates. All antivirus op

>>> Any suggestions for a good quality virus scanner in which I can have some confidence in regarding a reasonable choice in how it operates. All antivirus operate like rootkits. It's basically a rootkit trying to block other rootkits to install. Microsoft has the advantage to have access to all windows API and they put a ton of efforts in testing/compatibility. It is the least worst of all evil.