Michael, Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Code-0xC0070643-or-0xC007001C-when-installing-AVGCAK).
AVG Guru
Running windows 7. Previously had Free AVG 2014 running but it required constant reboot so I uninstalled but now cannot reinstall. Ran removal tools and deleted AVG related files as past forum posts suggested, to no avail. Error code 0xC0070643.
I have my log file but I can't see how to attach to this post
Michael, Have a look @ this article (https://support.avg.com/SupportArticleView?urlname=Code-0xC0070643-or-0xC007001C-when-installing-AVGCAK).
AVG Guru