It worked perfectly! Problem solved 
Hello Valeria,
We are here to help you.
The issues might be because of old/previous AVG traces.
In this case, I request you to remove AVG completely along with any previous traces using the AVG clear tool/AVG Remover tool and then do a fresh installation of AVG Antivirus free.
Please follow the instruction ( http://support.avg.com/SupportArticleView?urlname=How-to-troubleshoot-issues-after-upgrade-to-the-latest-AVG-antivirus-product ) to run AVG Remover tool and AVG Clear tool.
After the computer reboots, you can follow the instruction to download/install AVG Antivirus free.
Regards,
Alok.
AVG's icon displays red cross sign on it that says protection isn't active. Once I open the program, I try to click on "Fix now" but nothing happens at all.
Although I tried uninstalling and installing the program again, the same problem still comes up.
What's wrong? Please help me.
It worked perfectly! Problem solved
I am happy to hear that your issue is resolved.
I appreciate your time and co-operation.
Hello Alok,
Thank you so much for the quick reply. I'll try it right away!
Hello Valeria,
We are here to help you.
The issues might be because of old/previous AVG traces.
In this case, I request you to remove AVG completely along with any previous traces using the AVG clear tool/AVG Remover tool and then do a fresh installation of AVG Antivirus free.
Please follow the instruction ( http://support.avg.com/SupportArticleView?urlname=How-to-troubleshoot-issues-after-upgrade-to-the-latest-AVG-antivirus-product ) to run AVG Remover tool and AVG Clear tool.
After the computer reboots, you can follow the instruction to download/install AVG Antivirus free.
Regards,
Alok.