Resolving Error Code 0x80070643: Office 2021 Installation Failure
Follow these steps to fix the error code 0x80070643 during Office 2021 installation:
- Restart your computer and attempt to install Office 2021 again.
- Temporarily disable your antivirus software and retry the Office 2021 installation.
- Ensure your Windows OS is updated. If not, update it and then try the installation again.
- Remove any previous Office versions that could be causing conflicts with the Office 2021 installation.
- Utilize the Microsoft Office Installation Troubleshooter to detect and resolve installation issues.