Resolving Error Code 0x80070643 During Office 2021 Installation

To address the error code 0x80070643 when installing Office 2021, follow these effective steps:

1. Restart your Computer: Begin by restarting your computer to clear any temporary glitches that may be affecting the installation process.
2. Temporarily Disable Antivirus Software: Antivirus programs can sometimes interfere with software installation. Disable your antivirus temporarily and attempt the installation of Office 2021 again.
3. Update Windows: Ensure that your Windows operating system is up to date. Install any pending updates as they can include improvements that might resolve installation issues.
4. Uninstall Previous Office Versions: Remove any existing Office installations that could be conflicting with the new installation of Office 2021.
5. Run Microsoft’s Office Installation Troubleshooter: Microsoft provides a specialized troubleshooting tool designed to fix issues related to Office installation. Use this tool to diagnose and resolve problems.