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How to fix AVG error code 0xc0070643?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The avg error code 0xc0070643 is a Windows update error that typically happens when a computer is unable to connect to the Windows update server, or when the update server is unavailable. This can be caused by a number of things, including a poor internet connection, a firewall blocking the connection, or an issue with the Windows update server itself. In most cases, this error can be resolved by simply restarting the computer and trying again. If the problem persists, it may be necessary to contact Microsoft support for further assistance.

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1. Restart your computer and try installing AVG again

-Press the "Windows" key on your keyboard and click "Start". -Type "cmd" into the Start search bar and press Enter. -Type "reboot" and press Enter. -When your computer restarts, press the "F8" key to open the boot menu. -Select "Reboot System Now". -Press "Yes" to confirm. -After your computer restarts, install AVG again.

2. Uninstall any previous versions of AVG using the AVG Remover tool

  1. Launch the AVG Remover tool.
  2. Click on the "Uninstall" button.
  3. Select the versions of AVG you want to uninstall.
  4. Click on the "Uninstall" button.
  5. Restart your computer if prompted.

3. Download and install the latest version of AVG

  1. Open the AVG website and click on the “Download” button located on the top right corner of the main page.
  2. In the “Download” window that opens, click on the “Windows” tab and select the “Download for Windows” option.
  3. On the “Download for Windows” page that opens, click on the “Windows” button and select the “64-bit” option.
  4. Click on the “Download” button and wait for the download to finish.
  5. Once the download has finished, open the AVG installation file that you downloaded and double-click on it to start the installation process.
  6. Follow the on-screen instructions to complete the installation process.
  7. Once the installation process has finished, open the AVG antivirus software and click on the “Start” button to start using it.

4. Temporarily disable your antivirus and firewall protection and try installing AVG again

  1. Open your antivirus and firewall software and disable it.
  2. Download and install AVG software.
  3. After AVG is installed, open it and click on the "Scan" button.
  4. On the "Scan Results" page, click on the "Status" tab.
  5. In the "Status" tab, under "Avast Threats" section, click on the "Disable" button.
  6. Click on the "Apply" button to disable the AVAST threat.
  7. Click on the "OK" button to close AVG.
  8. Restart your computer.
  9. Try installing AVG again.

5. Contact AVG Support for further assistance

-Open the AVG antivirus program. -Click on the Help icon in the main toolbar. -Click on the "Contact AVG Support" link. -Complete the form and click on the "Submit" button. -AVG will send you a confirmation email. -If the issue is with your AVG software, AVG support will help you to fix it. If the issue is with your computer, AVG support may be able to help you with a solution.