2 antivirus programs on a PC
Is not recommended to have 2 antivirus programs with real time protection.
You can install products with scan on demand, like Kaspersky Removal tool, that does not have real time protection, and can detect and remove threats found.
If are used 2 shields for protection from 2 antivirus programs, freezes, errors and speed decrease can appear.
In general antivirus products, check at install time if other antivirus programs are installed and will not continue to finish the installation if you don’t remove the other product or products that are incompatible with it.

