Fix Office 2021 Looking Like Office 2016 After Installation
Question details
The user installed Microsoft Office Professional Plus 2021 on a new computer, but the application interfaces resemble the older Microsoft Office 2016 design.
- Product
- Microsoft Office Professional Plus 2021
- Device & OS
- not provided
- Scenario
- Installing a new Office 2021 license on a computer that may have had previous Office versions, trial remnants, or conflicting registry entries.
- Observed behavior
- The user interface of the Office applications appears to be from the older Office 2016 version instead of the updated 2021 design, causing confusion about the active license.
Ensure you have your Microsoft account login credentials and your Office 2021 product key on hand, as you will need them to reinstall the software after the cleanup process.
Completely Remove Office Remnants and Reinstall
Using the official Microsoft Support and Recovery Assistant (SaRA) ensures that no residual files or registry keys from older Office versions force the 2016 interface to load.
Often, new computers come with pre-installed trials of older Office versions or Microsoft 365. If these are not entirely removed before installing Office Professional Plus 2021, the system may read the old visual configuration files.
Visit the official Microsoft website and download the Office uninstall support tool (SaRA) by navigating to https://aka.ms/SaRA-officeUninstallFromPC.
Launch the downloaded setup file and follow the on-screen prompts to completely remove all versions of Office and their leftover remnants from your PC.
Once the tool confirms the uninstallation is complete, reboot your computer to clear out any remaining locked registry keys.
Go to https://account.microsoft.com/services/ in your web browser, sign in with the Microsoft account linked to your Office 2021 license, and click 'Install'.
After installation, open Word or Excel. Click on 'File' in the top left, select 'Account', and check the 'Product Information' section to confirm Office Professional Plus 2021 is activated.
Switch to WPS Office for a Clean, Modern Experience
Skip the frustrating installation errors, leftover registry remnants, and outdated interface issues of Microsoft Office. WPS Office provides a lightweight, highly compatible, and free alternative with a unified, modern tabbed workspace.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button for your operating system.
- 2. Install the Suite: Run the lightweight setup file to install the complete office suite in just a few clicks.
- 3. Open Your Files: Launch WPS Office and instantly open your existing Word, Excel, and PowerPoint files with zero formatting loss.
Frequently Asked Questions
Why does my newly installed Office 2021 look exactly like Office 2016?
This commonly occurs because residual registry keys, leftover configuration files, or license remnants from a pre-installed Office 2016 or Office 365 trial remain on your computer. These hidden files cause the new installation to default to the old interface style.
How can I verify which version of Office I am actually running?
Open any Office application, such as Word or Excel. Click on 'File' in the top left corner, then select 'Account' from the left-hand menu. Look at the 'Product Information' section on the right side of the screen to see your activated version.
Do I need to pay again if I completely reinstall Office 2021 to fix the interface?
No. As long as your Office Professional Plus 2021 license is permanently tied to your Microsoft account, you can reinstall it for free directly from the Microsoft Services & Subscriptions page after completely uninstalling the conflicting versions.
What if the interface still looks old after a clean reinstall?
Microsoft has kept the core ribbon structure relatively consistent between versions. If your Product Information page confirms Office 2021 is activated and fully updated, you are receiving all the security and feature benefits of 2021, even if it aesthetically resembles 2016.
