my Word print function is disabled after the upgrade. While my excel and powerpoint is still workable.

If your Word print function is disabled after an upgrade, there are several troubleshooting steps you can take to resolve the issue:

1. Change the Default Printer: Sometimes, Word may not recognize the current default printer. You can change it by going to Settings > Devices > Printers & scanners and setting Microsoft XPS Document Writer as the default printer. Then, restart Word and check if the print function is available.
2. Verify or Install Latest Updates: Ensure that your Office applications are up to date. Sometimes, issues arise due to outdated software. You can check for updates in the Office application settings.
3. Check for COM Add-ins: If there are any COM add-ins causing conflicts, you can disable them by deleting the registry keys for the COM add-ins. This may help restore the print functionality.
4. Repair Office: If the above steps do not work, consider repairing your Office installation. You can do this through the Control Panel under Programs and Features.
5. Reinstall Office: As a last resort, if none of the above solutions work, you may need to uninstall and then reinstall Microsoft Office.

These steps should help you troubleshoot and potentially resolve the printing issue in Word after your upgrade.