Applies to Sophos Home for Windows
Sophos Home detects another Antivirus software (or leftovers of it) is installed on the system and shows the following message:
Third party antivirus
Running two antivirus programs can reduce your security. For maximum protection, we suggest you uninstall <antivirus name> Antivirus.
What to do
Ensure the third party antivirus has been removed from the computer. If needed, contact their support teams for assistance (some antivirus software requires a removal tool to fully uninstall. You may search the vendor's site for removal instructions).
Once you have completed removing the third party antivirus, click on the x to dismiss the message on Sophos Home: