How to fix Unlicensed Product Office
The Unlicensed Product Microsoft Office Error is common in all versions of office like Microsoft 365, Office 2021,Office 2019, Office 2016. To use the core applications in any edition, you need to activate the proper method for each edition. When you open Microsoft Word, Excel, Outlook or PowerPoint , you will see a message that says: “Unlicensed Microsoft Office.” 
How to Fix Unlicensed Microsoft Office Error?
Home and Business users have different accounts. Similarly, Student and University subscriptions are different. When you were using this version with one type of Account, it will work as long as the service is live. For instance, if you change your Account from Home to University, there can be a conflict.
- Firstly, you are provided with an account, when you purchase this version
- Secondly, go to any Office application like Word, Excel, and PowerPoint
- Next select File > Account > Product Activation
- Enter the login details for your Account and select one of the right licenses
- As a result, you will see the Product Activation Status under Product Information
- Finally, if it says Product Activated, then your license is good to use
Unlicensed Product – If you don’t have product Key
- No product key is required if you are re-installing this version
- Just login used to buy the License
- If you purchased a license from retailers or an online store, the product key is given
- Link this key with your account by going to office.com/setup
- Simultaneously, download the Office product from Microsoft Services and Subscriptions pages
Typical Microsoft Office Unlicensed Product
You can always sign-up for the free versions of Office using a Microsoft account. When you open Word, Excel, PowerPoint, you are thrown a message that “Most of the features have been disabled”. For example, The Product is unlicensed Office error something wrong
Then, suddenly I got told that my Product was unlicensed and I couldn’t edit any of my documents that I could literally just yesterday. I am told the only way to ‘activate’ Office Program again is to sign in (I didn’t use an account to access MS office) or enter a product code (which was not included w/ my laptop as MS office was already pre-installed).
Source: answers.microsoft.com
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What are the reasons of this Unlicensed error?
- The subscription has expired
- The license Account is not working anymore
- Using the wrong License version
- The purchased License is pirated
- The retailer is not genuine
How does this Unlicensed error appear?
Generally, you either enter a product code or log in to an account to activate Microsoft Office Program. When neither of its workings, then some error might have triggered the “Unlicensed Product” error.
Common Solutions to Fix Unlicensed Product Office
- Check the current version of Office
- If it is all Office versions, check the Build
- Make sure you have all the proper updates
- Microsoft Office Program is a stand-alone application
- Office Professional Plus is for organizations
- Conflict of License between Home, Business, University editions
Office Program Fix – Product Activated
Issue Unlicensed Product Error Office
When you open a Microsoft 365, Office 2021,Office 2019, Office 2016 application, many features are disabled. In addition, you may experience one of the following symptoms
- When you click File in the Office Professional application and then click Help, you receive the following message
Product activation required
Product without a license
No subscription found
Conclusion :
Do you still need help? Go to the Microsoft community. When you try, there is to understand more about this, contact support. If you are still not able to resolve this issue we suggest you to chat with our experts. I am sure they will give you the best solutions to resolve this error completely. You can also visit our website for more information.
More details for this method at https://support.microsoft.com/en-us/help/929135/how-to-perform-a-clean-boot-in-windows
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