Can't install AVG Firewall

AVG Protection
3

Hello James,

Sorry for the inconvenience caused.
We request you to restart your PC once and then try installing Firewall, if the issue persists please do let us know.

2

Hello James,

Sorry for the inconvenience caused.
We request you to restart your PC once and then try installing Firewall, if the issue persists please do let us know.

1

Hi
when I tried to install the AVG firewall, I got this message:
Error code: 0xC0070571
Description: Event exec_finished
I'm hoping there is someone out there who has solved this and can tell me how to fix it, please?
thanks