Kaspersky, the Russian antivirus company, had a online scanner for a long time. Then for a long time they did not. But they have a new online scanner now which you can download to your computer and use with another antivirus. It really works well.
I suppose a person could use something like Microsoft Security Essentials and maybe something like Malwarebyte's Antimalware (free version) and use the Kaspersky scanner as a backup and to check that your computer is truly clean. All of these programs would be free and in effect a person would have two antivirus scanners (except the Kaspersky does not run in real time).
It might provide plenty of protection for the average person at no cost. And Kaspersky has a very good reputation. I believe that Kaspersky is better than Norton and far superior to Mccaffee.
I suppose a person could use something like Microsoft Security Essentials and maybe something like Malwarebyte's Antimalware (free version) and use the Kaspersky scanner as a backup and to check that your computer is truly clean. All of these programs would be free and in effect a person would have two antivirus scanners (except the Kaspersky does not run in real time).
It might provide plenty of protection for the average person at no cost. And Kaspersky has a very good reputation. I believe that Kaspersky is better than Norton and far superior to Mccaffee.