How to Stop Users from Changing Default MS Office Theme in Windows 11 or 10?

By default, Microsoft Office programs, such as Word, Excel, PowerPoint, etc., use a basic theme. However, one can change the Office theme according to their need. You can set a Colorful, Dark Gray, Black, White, etc., theme. But, what if you want to set a theme for all users? Using Local Group Policy Editor or Registry Editor, you can restrict theme change in the MS Office.

If you are an administrator and want to stop users from changing the default Microsoft Office theme in your organization, this gearupwindows article will guide you. We will show the steps to block changing themes in MS Office using Local Group Policy Editor and Registry Editor.

How to Prevent Users from Changing Default Office Theme using Local Group Policy Editor?

To prevent or stop users from changing the default organization Office theme using Group Policy, do the following:-

Step 1. First, install the Office’s Group Policy template on your computer.

Step 2. Then, launch the Local Group Policy Editor.

Step 3. When the Local Group Policy Editor window opens, browse to the following path on the left side:-

Computer Configuration > Administrative Templates > Microsoft Office 2016 (Machine) > Global Options > Customize

Step 4. Then, on the right-side of Customize folder, double-click on the Default Office theme policy to change the settings.

Step 5. Select the Enabled option.

Step 6. Select a theme from the “Theme” drop-down menu that you want to set for all users.

Step 7. Then, click the Apply button.

Step 8. Finally, hit the OK button to save the changes.

To allow the theme changes in MS Office again, repeat the above steps and choose the Not Configured option in the above step 5. Click Apply and then OK button.

How to Stop Users from Changing Default Office Theme through Registry Editor?

To stop or prevent users from changing the default Office theme using Windows Registry, use the following steps:-

Step 1. At first, open the Registry Editor.

Step 2. When Registry Editor opens, navigate to the following key in the left sidebar:-

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft

Step 3. Then, right-click on the Microsoft folder and select New > Key.

Step 4. Name the newly created key as office.

Step 5. Now, right-click on the office folder and select New > Key.

Step 7. Name it as 16.0.

Step 8. After that, right-click on 16.0 folder and choose New > Key.

Step 9. Name it as common.

Step 10. Now, on the right-side pane of common folder, right-click on blank space and select New > DWORD (32-bit) Value.

Step 11. Name it as default ui theme.

Step 12. Double-click on default ui theme and set its value data as follows:-

  • 0 – Colorful theme.
  • 3 – Dark Gray theme.
  • 4 – Black theme.
  • 5 – White theme.

Step 13. Click the OK button.

Step 14. Finally, reboot your computer to apply the changes.

To revert the changes to default, navigate to the following path in the Registry Editor:-

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\office\16.0\common

On the right side of common folder, right-click on default ui theme and select Delete option.

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