Much more info needed. Especially OS & Patch Level & AVG Version & pay or free?
Was it cleaning an infection and after that this started?
Did you try to install AVG & had failure & after trying to un-install AVG this came up?
Had you previous just before AVG had another AV program & did you remove?
Have you tried System Restore to well before this appeared?
Have you tried a System File Check scan/repair?
Help us to help you! Thanks!
i used AVG i now get message system32/rundll32.exe missing and any time i open an icon on the desktop the "Open With" window pops up??????