To uninstall other security solutions from your MAC you can try one of the following:
1) Locate and mount the .dmg you used to install the product
Open the mounted drive and look for the uninstaller.
2) Go to Macintosh HD
Go to the Applications folder
Go to the security solutions folder
Look for the uninstaller
3) Contact the publisher of the software you wish to uninstall either by calling their support line or by accessing the support section of their website.