Error code: 0xC0070643

Richard,
Thank you for choosing AVG. We regret to hear you are experiencing issues with AVG installation. Kindly follow the steps in this article http://support.avg.com/SupportArticleView?urlname=What-to-do-when-AVG-installation-is-failing to resolve your issue and install AVG successfully.
Please, feel free to let us know if you require any further assistance.

I am trying to install AVG Free. My 'puter won't let me uninstall. I tried to manually all the components of AVG. No Go! I have tried at least 5 times to install this and keep getting the same error code. Why can't I install  or uninstall? I have had AVG for as long as I can remember. Help!!!

Richard,
Thank you for choosing AVG. We regret to hear you are experiencing issues with AVG installation. Kindly follow the steps in this article http://support.avg.com/SupportArticleView?urlname=What-to-do-when-AVG-installation-is-failing to resolve your issue and install AVG successfully.
Please, feel free to let us know if you require any further assistance.