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Unable to install AVG, Error code:0xC0070643, Solved...!!

We want to install AVG Business edition for one of our Server having Windows Server 2008 R2.
Whenever we trying to install getting the "Error Code:0xC0070643. Installing 3rd parties redistributables.,MSI action failed.".
  • I tried to run the AVg Remover, Still not resolved.
  • Chcked and found that OS is updated with latest Hotfixes, So there is no issue with Windows Updates.
  • Rebooted the Server, Still not resolved.
  • Finally I found one Link from AVG Support center, Fix for 0xC0070643, I run the tool and its Showing me that Error not solved, But Still I tried to run the Installer.exe again. And finally its installed successfully.

Let me know if you have any questions..!!


  1. Hi Pankaj, I was trying to install free edition avg 2013. I got this error, tried to install again with the fix u had mentioned. But When I tried to run click fix executable file, It says (Please open this url) . (But My internet connection was proper!)

    1. Hello Jenson.
      Sorry for Late reply.
      I suggest to Right Click the EXE > Go to Properties > Click on "Unblock" option > Click OKAY.
      Then you can try to run EXE again.

      I hope it will work.

      Let me know the results.

      Thanks and regards

    2. Hello!
      I had the same problem and I try "Right Click the EXE > Go to Properties > Click on "Unblock" option > Click OKAY.
      Then you can try to run EXE again."
      And now is OK. ;-)

  2. I have same problem, but when I right click on the AVG_ClickNFix_178122_en_US.exe, and properties, there is no "Unblock" option. I get the same error. When I try to access links for help on Avg site, get errors that server not responding, but my internet is fine??



    1. Hello David,
      Sorry for Late reply..!!
      Its really strange..!! I suggest to check your antivirus (May be that blocking to access the site).
      You can disable the Services (Start > Run > Services) for the Antivirus and then try to access.

      I hope it works.

      Feel free to update your findings..!!


  3. Our antivirus is blocking the installation of antivirus software? I just uninstalled AVG 9 to update to AVG 2014, so...I don't think that's it.


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