Express VPN Error 0x80070643 [Possible Causes and Quick Fixes]

Express VPN is a popular tool that helps protect your privacy and security online.

However, you’re probably facing an error called 0x80070643 right now, [it usually pops up during installation or updates].

Fortunately, it’s not a big problem, and it’s easy to fix!

In this guide, we’ll walk you through the common reasons why this error happens and simple, quick solutions to help you get ExpressVPN up and running again.

Express VPN Error 0x80070643 [possible causes and quick fixes]

1. Damaged or Incomplete Installation Files

One of the most common reasons for error 0x80070643 is damaged or incomplete installation files.

related: How To Cancel Express VPN 30-days Trial

This can happen if the installer was interrupted during download or if there was an issue when installing the software.

When the installation files are corrupt or not fully downloaded, the ExpressVPN app can’t properly set up on your computer, causing the error.

Fix:To fix this, you should download a fresh copy of the ExpressVPN installer to ensure you have a complete and uncorrupted file. Here’s how to do it:

1. Uninstall the current ExpressVPN installation (if any):
   • Go to Control Panel > Programs > Uninstall a program and uninstall ExpressVPN.
2. Download the latest installer:
   • Visit the official ExpressVPN website (https://www.expressvpn.com) and download the installer again.
3. Reinstall ExpressVPN:
   • Run the new installer and follow the on-screen instructions.
4. Check for the error:
   • After installation, restart your computer and check if the error is resolved.

2. Antivirus or Firewall Blocking the Installation

Sometimes, antivirus software or a firewall might block the installation of ExpressVPN, thinking it’s a security threat.

Of course, those programs are designed to protect your computer, but they can sometimes mistake the installation process for something dangerous and stop it.

This can cause the error 0x80070643 during installation.

Fix:To fix this, you can temporarily disable your antivirus or firewall while installing ExpressVPN. Here’s how to do it:

1. Disable your antivirus software:
   • Open your antivirus program and look for the option to disable it (usually under settings or protection).
   • Turn it off, but remember to turn it back on after the installation is complete.
2. Disable your firewall:
   • Go to Control Panel > System and Security > Windows Defender Firewall.
   • On the left, click Turn Windows Defender Firewall on or off.
   • Select Turn off Windows Defender Firewall for both private and public networks.
3. Reinstall ExpressVPN:
   • After disabling antivirus and firewall, try installing ExpressVPN again.
4. Re-enable your antivirus and firewall:
   • Once the installation is complete, don’t forget to turn your antivirus and firewall back on to ensure your computer is protected.

3. Outdated Windows or System Drivers

If your Windows operating system or system drivers are outdated, it can cause compatibility issues with the installation of new software like ExpressVPN.

Error 0x80070643 can occur if the system is missing critical updates or if the drivers are not up-to-date. In other words, that will prevent the proper installation of ExpressVPN.

Fix:To fix this, you need to ensure your system is fully updated. Here’s how to do it:

1. Check for Windows updates:
   • Click on the Start Menu and type “Windows Update” in the search bar.
   • Select Check for updates from the results.
   • Windows will automatically check for available updates and install them.
   • After the updates are installed, restart your computer to make sure everything is up-to-date.
2. Update your drivers:
   • Right-click on the Start Menu and select Device Manager.
   • Check for any devices with a yellow exclamation mark (indicating outdated or missing drivers).
   • Right-click the device and choose Update driver.
   • Follow the prompts to update your drivers automatically.
3. Restart your computer:
   • After updating Windows and your drivers, restart your computer to apply all the changes.

4. Previous VPN Apps Conflicting with ExpressVPN

If you have another VPN app installed on your computer, it could conflict with ExpressVPN.

Older or different VPN programs might still be running in the background, causing errors like 0x80070643 during the installation of ExpressVPN.

This happens because VPN apps need to use similar network settings, and conflicts between them can stop the new installation from working properly.

Fix:To fix this, you should just uninstall any previous VPN apps before installing ExpressVPN. Here’s how to do it:

1. Uninstall previous VPN apps:
   • Go to Control Panel > Programs > Uninstall a program.
   • Look for any other VPN programs you might have installed (such as NordVPN, CyberGhost, or others).
   • Right-click on the VPN app and select Uninstall. Follow the prompts to remove the program.
2. Restart your computer:
   • After uninstalling the old VPN software, restart your computer to ensure that any leftover files are cleared and that your system is fresh.
3. Try installing ExpressVPN again:
   • Now that there are no other VPNs installed, try installing ExpressVPN again. Now, there should no longer be any VPN that will cause conflicts that could stop ExpressVPN from installing correctly.

Conclusion

It’s very common to face this 0x80070643 error when you’re trying to get ExpressVPN working on your computer, and yes, it’s frustrating if you ask me, but with the steps provided, you can easily fix it and get ExpressVPN working on your computer.

Meanwhile, if the error persists, then that means it’s time to reach out to ExpressVPN support.