Robin,
I apologize for the inconvenience this may have caused to you. I have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue.
AVG suddenly stopped working and went into passive mode with an error that another antivirus was installed when none had been installed as I have checked. I am guessing it has tried to update and "saw" a copy of itself. I used to AVG remover to remove although it hadn't been removed from add remove programs. I had to manually delete the files from program files, program data, temporary files, prefetch as well as old registry keys. I then reinstalled but now it starts without the firewall running. you can turn it on manually but it is off again on reboot.
Robin,
I apologize for the inconvenience this may have caused to you. I have sent you an email instruction to get connected with our technical support team. Please follow those instructions to get in touch with them and you should be able to resolve your issue.