New Version Install Error! Incompatability Error. Must Uninstall AV 3.x[RESOLVED

Can’t find Comodo antivirus version 3.x on my machine. So I uninstalled the version of antivirus I had on the system: 3.14.130099.587 and got the same error message. How do I install the newest version?

If you want to install v4 you need to do a clean install.