How to solve the error code 0-1021: Office 2016 installation requires an update

There are a few steps you can take to solve the error code 0-1021 when installing Office 2016:

1. Check for updates: Make sure your computer is up to date with the latest updates from Microsoft. Go to Settings > Update & Security > Windows Update and click Check for updates.
2. Uninstall previous versions of Office: If you have any previous versions of Office installed on your computer, uninstall them before installing Office 2016.
3. Use the Office uninstall tool: Microsoft provides an uninstall tool that can help remove any previous versions of Office completely. Download and run the tool from the Microsoft website.
4. Disable antivirus software: Sometimes antivirus software can interfere with the installation process. Try disabling your antivirus software temporarily and then try installing Office 2016 again.
5. Use the Office offline installer: If you are still having trouble installing Office 2016, try using the offline installer. This can be downloaded from the Microsoft website and does not require an internet connection during installation.