Error code: 0xC0070643 Description: Event exec_finished

To install AVG Antivirus Free 2016 we request you to use the offline installation. To determine whether your OS is a 32-bit or 64-bit, please click on this link. http://support.microsoft.com/en-us/kb/827218
For 32 Bit : http://files-download.avg.com/inst/mp/AVG_Antivirus_Free_x86_694.exe
For 64 Bit : http://files-download.avg.com/inst/mp/AVG_Antivirus_Free_x64_693.exe
Please feel free to contact us for any further assistance. Thank you.

Hello Spela,
We understand how something like this can really try your patience.
To get your issue fixed, we request you to run AVG remover tool and then install AVG Antivirus free offline installation back in your pc to get your issue fixed.
To run AVG remover tool please follow the below steps :
Please click on the below link to download remover tool
http://aa-download.avg.com/filedir/util/AVG_Remover.exe
Accept the license agreement and then choose AVG Product and remove it.
NOTE: Once the AVG Remover Tool has done with its process. Please go to the drive where you installed this tool and look for a folder named as "AVG Remover" and I request you to delete it manually.

I had free AWG installed on my computer. I made a mistake and upgraded it to trial version.
When the trial version expired, I tried to uninstall the trial AVG version and install the free version. However the instalation failed.
Now I have also tried to remove the AVG with the AVG removal tool and install the zen free AVG - but it failed again.

I do not know how to continue and would really apreciate your help.
Thank you very much

Hello Spela,
We understand how something like this can really try your patience.
To get your issue fixed, we request you to run AVG remover tool and then install AVG Antivirus free offline installation back in your pc to get your issue fixed.
To run AVG remover tool please follow the below steps :
Please click on the below link to download remover tool
http://aa-download.avg.com/filedir/util/AVG_Remover.exe
Accept the license agreement and then choose AVG Product and remove it.
NOTE: Once the AVG Remover Tool has done with its process. Please go to the drive where you installed this tool and look for a folder named as "AVG Remover" and I request you to delete it manually.