Internet Security

Hello Barbara,
We regret for the inconvenience caused. Could you please confirm whether you have installed the AVG PC TuneUp Unlimited program on your PC? If not please try to install the program and check whether you could continue fixing the issue's. If you are still facing any issues We kindly request you to  follow the instructions on the article http://support.avg.com/SupportArticleView?urlname=How-to-reinstall-AVG to reinstall all the traces of the AVG program and check whether it resolves the issue.
Note : Please use the AVG Remover tool mentioned on the article to uninstall the AVG program more effectively.
Please feel free to get back to us for further assistance.
Thank you.

When I open Internet Security and click on Fix Performance it blinks once then shuts down.

Hello Barbara,
We regret for the inconvenience caused. Could you please confirm whether you have installed the AVG PC TuneUp Unlimited program on your PC? If not please try to install the program and check whether you could continue fixing the issue's. If you are still facing any issues We kindly request you to  follow the instructions on the article http://support.avg.com/SupportArticleView?urlname=How-to-reinstall-AVG to reinstall all the traces of the AVG program and check whether it resolves the issue.
Note : Please use the AVG Remover tool mentioned on the article to uninstall the AVG program more effectively.
Please feel free to get back to us for further assistance.
Thank you.