Hello Claudio,
Let's try with reinstallation and check if that helps. Use AVG Clear and Remover tool to uninstall AVG.
Refer the below article to download removers for uninstallation:
http://support.avg.com/SupportArticleView?urlname=How-to-troubleshoot-issues-after-upgrade-to-the-latest-AVG-antivirus-product and reinstall AVG Ultimate as suggested here: https://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-Ultimate
0xC0070643: Error general (0x0643)
What could I do?
Hello Claudio,
Let's try with reinstallation and check if that helps. Use AVG Clear and Remover tool to uninstall AVG.
Refer the below article to download removers for uninstallation:
http://support.avg.com/SupportArticleView?urlname=How-to-troubleshoot-issues-after-upgrade-to-the-latest-AVG-antivirus-product and reinstall AVG Ultimate as suggested here: https://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-Ultimate