With hundreds of millions of users worldwide, the free Avira Antivirus is immensely popular.
It gets excellent lab scores, and it brings along a team of related Avira products.
The best product I have found is called Malwarebytes and best of all, it is FREE.
Malwarebytes works with your anti-virus program to find the things it doesn't.
Any employee device harboring a virus could spread their own infection throughout the local network.
Similarly, a guest connecting to your home network in similar circumstances could see your own devices infected.
Given that it's free, I can overlook the fact that both its on-demand scan and real-time protection proved sluggish in testing.
And the firewall item just helps you configure Windows firewall.
Please choose the scenario that best fits your situation: It doesn't matter if you have a pay-for antivirus program or are using a free virus scan program, many of today's evil little malware programs no longer show up on antivirus scans.
To be safe, you should have something to find the things anti-virus programs miss.
Let us have a look at the standalone virus scanners first.
The Microsoft Safety Scanner is a free downloadable security tool for the Windows user and provides on-demand scanning and helps remove viruses, spyware, and other malicious software. is one fine scanner to use when you feel the need for a second opinion.