Smadav

Antivirus is designed for main protection on your PC because almost all other antivirus programs cannot be installed with another antivirus program.

This is not the case for Smadav, Smadav is an antivirus designed as an additional (second layer) protection, so it is compatible and can be installed and run together with another antivirus on your PC. Smadav uses your own techniques (behavior, intuitive, and whitelist) to detect and remove viruses that increase security on your PC.