How to uninstall the old and install the new. That's called a clean install which cures that for most.
I have a newish computer - 1 year old and have had AVG free edition 7.1. I tried to upgrade to 7.5 and dowloaded new file followed all the instruction on repair installation etc but now get the error message:
Installer initialiszation failed due to the following error:
Error: Termination of application Complete Test (class Avg70TestClass) failed. Access is denied. (5)
Any ideas what I can do now?