You're welcome.
Let us know if it doesn't resolve this and we can run through a clean reinstall however, if using the AIS in trial 30 days, uninstalling it would be considered a conclusion to the trial. So if you have done this already, when you reinstall it you don't get a new fresh 30 days (anti-piracy measure), only 6 days I believe before it would stop working.
So I don't know if this is what might be going on, if so then you have to make up your mind to purchase and enter the license file or downgrade to the avast free version (reinstall).