need to uninstall AVG antivirus (quick help)

hi guys i just doenloaded the free version of AVG but in the install process the program does not finish with installing so i went for kasperky 2009 and downloaded the trial version but when i try to install it Kaspersky says that AVG is still installed and i need to uninstall it

now when i try to uninstall AVG nothing is shown in ADD/REMOVE and i cant do nothing

ran ccleaner and still nothing

need urgent help coz i think i have a virus in my system

AVG Removal Tool