Activation Problems

Fix Office 2016 Appearing as Microsoft 365 After Windows Updates

Anum MushtaqAnum Mushtaq Nov 3, 2026 868 views

Question details

The user's Office 2016 Professional Plus installation is displaying as Microsoft 365, triggering an unwarranted product notice warning.

How to Fix Office 2016 Appearing as Microsoft 365 After Updates
Product
Microsoft Office 2016
Device & OS
Windows 10
Scenario
Opening Office applications after a recent Windows update or reactivation process.
Observed behavior
A Product Notice warning banner appears claiming a Microsoft 365 subscription issue, even though the File > Account dialog confirms that the Office Professional 2016 license is actively licensed.
Before you start

Ensure you have your original Microsoft Office 2016 Professional Plus product key available before uninstalling any potentially conflicting applications.

Solution 1Recommended

Remove Conflicting Office Installations and Verify License

Check your Windows system settings for duplicate or conflicting Microsoft 365 installations and confirm your 2016 activation status within the application.

Windows updates or pre-installed trials can sometimes cause Microsoft 365 to run alongside your standalone Office 2016 installation. This overlap confuses the licensing service, causing the Microsoft 365 warning banner to display in your 2016 apps.

1
Check Account Information

Open any Office 2016 application, such as Word. Click on 'File' in the top left corner, then select 'Account'. Under Product Information, verify that 'Microsoft Office Professional Plus 2016' is listed as Activated.

2
Open Windows Apps Settings

Press the Windows key + I on your keyboard to open Windows Settings, then click on 'Apps' to view your installed programs.

3
Locate Duplicate Installations

In the 'Apps & features' list, scroll down or use the search box to look for 'Microsoft 365' or duplicate entries of Microsoft Office suites.

4
Uninstall Microsoft 365

If you find a Microsoft 365 entry that you do not have a subscription for, click on it and select 'Uninstall'. Follow the on-screen prompts to remove it, then restart your computer.

Remove Conflicting Office Installations and Verify License
Persistent Banners: If you only see Office 2016 in your settings but still get the banner, the licensing cache might be stuck. Try signing out of your Microsoft account from the 'File > Account' page, restarting the app, and signing back in.
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Frequently Asked Questions

Why does my Office 2016 say Microsoft 365?

This happens when a Windows update installs Microsoft 365 background services or when a pre-installed Microsoft 365 trial on your PC overlaps with your Office 2016 installation, causing the interface to display Microsoft 365 prompts.

Will uninstalling Microsoft 365 delete my Word documents?

No, uninstalling the Microsoft 365 application from your Windows Apps & features menu only removes the software program. Your personal files, documents, and data will remain safe on your hard drive.

How do I permanently get rid of the Product Notice warning banner?

You can resolve this by uninstalling any overlapping Microsoft 365 apps from Windows Settings. If no overlapping apps exist, signing out of your Office account under File > Account and signing back in will often clear the cached license warning.