If you get installation error 0xc0070643, one of the ways to
fix it is to run the AVG Remover tool. During the installation process, some AVG files will be stored to your PC.
Those files can interfere with future attempts to install AVG, therefore it's crucial to remove those files. To do that, you need to download AVG Remover.
Run the tool and wait until it removes the previous installation of AVG. After the tool removes AVG installation, restart your PC and check if the problem is resolved.
Some users are also suggesting to shut down your PC after you use this tool and turn it back on again, so you might want to try that as well.
Fellow users have also chosen to download AVG Reset Access tool. After downloading the tool, run it and check if the problem is resolved.
Another tool that many users are recommending is AVG BFE Fix tool. Simply download AVG BFE Fix, run it and it should fix the problem.
After using all three tools, AVG install error 0xc0070643 should be resolved.
If this method didn't work for you, don't worry, as it has been reported by few users. According to them, AVG Remover tool didn't fix the problem,
and they were still getting 0xc0070643 description: event exec_finished error while trying to install AVG.
To fix this problem, you need to run AVG Remover from Safe Mode. To do that, follow these steps:
Open the Start Menu and click the Power button.
Hold the Shift key on your keyboard and choose Restart option from the menu.
Now you'll see three options available. Choose Troubleshoot > Advanced options > Startup settings and click the Restart button.
When your PC restarts, you'll see a list of options available. Choose Safe Mode with Networking by pressing F5 on your keyboard.
Once the Safe Mode starts, all third-party applications and drivers will be disabled, so there's nothing that will interfere with AVG Removal tool.
Simply run the tool and follow the instructions on the screen to remove AVG. After doing that, restart your PC and try to install AVG once again.
Solution 2 - Use Revo Uninstaller
AVG is famous for its antivirus software, but while installing AVG antivirus you can sometimes install AVG PC Tuneup as well, since two applications are often bundled.
If you have AVG install error 0xc0070643, you need to remove AVG PC Tuneup tools from your PC. To do that, use Revo Uninstaller.
After that, you need to run AVG Remover tool to remove previous AVGinstallation. Users are also suggesting to use tools such as Everything Search Program and Regseeker to search for any
AVG files left on your PC and in your registry. If you find and AVG files or registry entries, remove them from your PC. Restart your PC and try to install AVG again.
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