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Go to notfoundTroubleshooting Office 2021 Installation Error 0x80070643
Follow these troubleshooting steps to fix the error code 0x80070643 when installing Office 2021:
- Reboot your system and attempt the Office 2021 installation once more.
- Temporarily turn off your antivirus software and reinstall Office 2021.
- Ensure your Windows OS is current. Update it if necessary and try the installation again.
- Remove any old Office installations that could interfere with the new Office 2021 setup.
- Employ the Microsoft Office Installation Troubleshooter to identify and resolve any setup problems.