Oliver,
Are you using AVG Antivirus Free? Have you used AVG Clear and remover tool to uninstall AVG with its traces?
If not, refer this article: http://support.avg.com/SupportArticleView?urlname=How-to-troubleshoot-issues-after-upgrade-to-the-latest-AVG-antivirus-product to download and run AVG Clear and remover tool and reinstall your AVG product.
I have a problem with my avg. It says You are not protected, computer protection is turned off. When i try to press the FIX NOW button nothing happens. This is also interupting my windows defender. I have tried to reinstall it and repair it but it doesn't seem to work.
Oliver,
Are you using AVG Antivirus Free? Have you used AVG Clear and remover tool to uninstall AVG with its traces?
If not, refer this article: http://support.avg.com/SupportArticleView?urlname=How-to-troubleshoot-issues-after-upgrade-to-the-latest-AVG-antivirus-product to download and run AVG Clear and remover tool and reinstall your AVG product.