Even Macs get viruses. Having an antivirus program makes sense. However, when you download and install one, the error message pops up stating your system is only partially protected! Why is that and what can be done?
The antivirus program requires Full Access to your hard drive. Only an authorized user can grant that access. First, make sure you are logged onto the Mac as the authorized user. Next, go to the System Preferences and select Security & Privacy. Scroll down to Full Access on the left side. Unlock the icon at the bottom by entering your Admin password, (most likely the same password as you logon with at boot up). Place a check mark next to the antivirus application that is listed.
Close out and run the scan software again. You should not see that message anymore.