Can't install AVG Antivirus Free. Error message: OXC0070643

Hello Kathy, I apologize for the inconvenience caused. Please download and run AVG BFE Fix tool by using this link - http://download.avg.com/filedir/util/AVG_BFEfix.exe. The computer will restart once the tool resolves your issue. After restarting, you can install AVG Free without any error.

How do I solve this problem.

Hello Kathy, I apologize for the inconvenience caused. Please download and run AVG BFE Fix tool by using this link - http://download.avg.com/filedir/util/AVG_BFEfix.exe. The computer will restart once the tool resolves your issue. After restarting, you can install AVG Free without any error.
Kathy, For info also have a look @ this official AVG article (http://avgclick.me/checkAVGinstall). It features this article (http://avgclick.me/1Jm576W) re AVG BFE Fix tool.
AVG Guru