Installing Sophos Anti-Virus

Sophos install files are stored on the Sophos Admin server in the following location:


Run the setup.exe and enter the network credentials for the update server and the install will complete.

Connecting AVG to the AVG Admin Console

If you have issues connecting an AVG client to an AVG admin server ensure the following things are considered:

1. The server and the client must be running the same version. You cant run 2012 clients on 2016 server and visa versa.
2. Ensure you have specified port 4158 and in the admin console settings page try the FQDN is the server name alone does not work.
3. Try resetting the connection settings to defualt using the defualt button then re-enter the details.

AVG Setup Info

Admin server port is 4158


When connecting to the admin server Enter the address to the admin server as


Error: AVG setup error 0xcoo70643

If you get this error when un-installing or installing AVG you will need to do the following:
AVG Error 0xcoo70643
Download and run the correct version of AVG Remover - If it doesnt work try runing ALL of them. Make sure you run them from a full domain/local admin user.

AVG Remover (32bit)
AVG Remover (64bit)
AVG Remover (32bit) 2015
AVG Remover (64bit) 2015
AVG Identity Protection Remover

Reboot - Then try to install AVG again.
Also, try this remover: Download here
If this fails, try to install AVG in another location (select advanced install).

If this still fails you'll need to do this:
Clean .NET Framework using this tool

Then re-install the .NET frameworks.

o .NET Framework v1.1

o .NET Framework v1.1 SP1

o .NET Framework v3.5 SP1 (Note that this will also install v2.0 and v3.0 SP2 of .NET Framework)

o .NET Framework v4.0
  • Install .NET Framework 1.1, 1.1 SP1, 3.5 SP1 and 4.0 in order.

Check Windows Update and ensure all important Updates have been installed.

Try to install AVG again.

Still Receiving AVG Install Error Code 0xc0070643?

If you continue to receive an AVG installation error code 0xc0070643 after using the above guide contact AVG Support and provide the installation log for AVG:

  • Make sure that hidden files and folders are displayed. See the guides on how to make these items visible in XP or Vista and Windows 7.
  • Browse for C:\Documents and Settings\All Users\Application Data\MFAData\Logs\ (in XP) or C:\ProgramData\MFAData\Logs\ (in Vista and Windows 7).
  • Locate the most recent MFA-<date>-<time>.log and MSI-<date>-<time>.log files.
  • Compress these files and send to AVG support. Free users of AVG should provide these log files at AVG Free forum. Paid customers should visit AVG Support website.

The AVG support team will analyze the provided log files and should offer steps in fixing the problem.