How to fix error code 0x80070643 on Microsoft Visual C++ 14.40.33810

Question

I'm encountering an error message that says "setup failed 0x80070643" while trying to install Microsoft Visual C++ 14.40.33810. How can I fix this issue?

Answer 1

To fix the "setup failed 0x80070643" error during Microsoft Visual C++ installation, follow these steps:

1. Run Windows Update: Make sure your system is up-to-date with all Windows updates.
2. Run as Administrator: Right-click the installer and select "Run as Administrator."
3. Repair .NET Framework: Use the .NET Framework Repair Tool or reinstall the .NET Framework.
4. Uninstall and Reinstall: Uninstall any existing versions of Visual C++ from the Control Panel, then retry the installation.
5. Check for Conflicts: Temporarily disable any antivirus software to check for interference.
6. Use the Microsoft Install and Uninstall Troubleshooter: Download and run this tool to fix problems preventing software installation.
7. Check the Logs: Review the installation logs for specific errors that might suggest a more targeted fix.
8. Contact Support: If the problem persists, consider contacting Microsoft Support for further assistance.