AVG Installation into Windows 7

Hello Juan,
We understand how something like this can really try your patience.
Could you please let us know the exact name of the AVG product you are trying to install in your pc? also let us know whether you have installed any other 3rd party antivirus or AVG product before in your pc, so that we are happy to assist you better.
Please feel free to contact us for any further assistance. Thank you.

I have a problem at instllation time:

Incorrect Installation

Error Code 0xE001D012
Error Description: Event exec_finished

Hello Juan,
We understand how something like this can really try your patience.
Could you please let us know the exact name of the AVG product you are trying to install in your pc? also let us know whether you have installed any other 3rd party antivirus or AVG product before in your pc, so that we are happy to assist you better.
Please feel free to contact us for any further assistance. Thank you.

I don't have any AV software.

I must reset my PC reinstalling Windows 7 from scratch.
the first step (follow windows updates) was installing FREE AVG
At installation time i get the following screen:

INSTALLATION INCORRECT

Error Code: 0xe001D012

Description: Event exec_finished

 

This is verified, again, when I click PROTECTION buttom from control AVG panel