Error message re firewall

The removal tool fails to uninstall the product. Repair of product fails, reinstall of product fails, everything fails. The remover tool does not run after reboot… results: a trashed operating system

Hello John. To make it easier please follow the below mentioned instructions:

1) First step is to use AVG Remover tool and uninstall your AVG program completely. To download AVG Remover Tool please click on the following link: http://download.avg.com/filedir/util/support/avg_remover_stf_x64_2015_5501.exe.

I recevie this error message when installing AVG Pro
Severity : Error
Error Code 0xC0070643
Additional message General internal error
Additional message: MSI Engine: Failed to install product
@AVGMSI_Error 27025
Setting of firewall registry keys failed (0xE001003D)
Context intsallation of AVG Core, MSI action failed

Any ideas please
cheers
john

Thanks Alan,

I will take the someone to install option but when I go to the support page if gives me a $6 option

Hello John. To make it easier please follow the below mentioned instructions:

1) First step is to use AVG Remover tool and uninstall your AVG program completely. To download AVG Remover Tool please click on the following link: http://download.avg.com/filedir/util/support/avg_remover_stf_x64_2015_5501.exe.

John, Have a look @ this official AVG article (http://avgclick.me/checkAVGinstall).
AVG Guru

Hello Frank,
We apologize for the inconvenience caused. We appreciate your valuable effort in trying to fix the issue.
I have sent you an email with further instructions to be followed to get our additional support.
Please feel free to contact us for any further assistance. Thank you.

The removal tool fails to uninstall the product. Repair of product fails, reinstall of product fails, everything fails. The remover tool does not run after reboot… results: a trashed operating system

Thanks Alan,

I will take the someone to install option but when I go to the support page if gives me a $6 option