Cannot install on Mac Air running OSX 10.9.2 also have Windows on Parallels installed.

Cannot install on Mac Air running OSX 10.9.2. 

Also have Windows 7 installed on Parallels.

Norton appears to have installed on that platform, but how do I install

on "George's Mac Book Air" which stall show as uninstalled.

I have tried to uninstall Kaperski but it seems that it it still there even after running special uninstall link