Hello! I understand that you're having trouble activating your Microsoft Office Professional Plus 2016 using the product key provided. Here are some steps you can try to troubleshoot and resolve the issue:
1. Check the Product Key: Double-check the product key you entered to ensure that there are no typos or errors. Make sure you're using the correct characters and that you haven't accidentally swapped any letters or numbers.
2. Internet Connection: Ensure that you have a stable internet connection while trying to activate Office. Sometimes activation issues can occur due to network connectivity problems.
3. Activation Method: Make sure you are using the correct activation method for Microsoft Office Professional Plus 2016. You can activate it either online or by phone. If online activation is not working, try the phone activation method.
4. Use a Different Activation Method: If online activation is not working, try activating Office by phone. Follow the on-screen instructions to complete the phone activation process.
5. Contact Microsoft Support: If you have tried the above steps and are still unable to activate Office, you may need to contact Microsoft Support for further assistance. They can help you troubleshoot the activation issue and provide guidance on how to proceed.
Please let me know if you need further assistance or if you have any other questions.