Prevent users from changing Lock Screen or Start Screen in Windows 10/8

In Windows 8, Lock Screen is one leading new features introduced. By default, Windows 10/8 comes with capabilities to change Lock Screen image. Sometimes it may be possible for a multi users PC, that someone put up the image which you hate most. So what can be done to prevent users from changing the lock screen or the Start Screen? This article will show you how to prevent users from changing Lock Screen or Start Screen background image in Windows 8 using Registry and Group Policy Editor.

Prevent users from changing Lock Screen in Windows

In this article, I’ll tell you how you can set a constant image for Lock Screen so that others will be unable to make modifications to it.

NOTE : These settings will work only in Windows 10/8 Enterprise, Windows 10/8 and Windows Server Editions. It will not work as far as Windows 8/10 Pro or Windows 8 RT editions are concerned.

Using Registry Editor

1. Press the Windows Key + R simultaneously and put regedit in Run dialog box.

2. Navigate to the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization

3. In the right pane of this location, create a string named as LockScreenImage if it is not there. Now double-click on it, and put the location of your desired lock screen image as its Value data.

4. That’s it! Close the Registry Editor and reboot to get results.

Using Group Policy Editor

NOTE : This option for using group policy is only available in the Windows 10/8 Pro and Windows 10/8 Enterprise editions.

1. Press Windows Key + R combination and put gpedit.msc in Run dialog box.

2. In the left pane navigate to:

Computer Configuration -> Administrative Templates -> Control Panel -> Personalization

3. Now look in the right pane, you’ll got the policy named Force a specific default lock screen image as shown above.

4. Double click on this policy to get the window shown below.

5. Now you can use following settings:

Allow Lock Screen Background Change =  Disabled/Not configured (Default Setting)

Disable Lock Screen Background Change =  Enabled

If you choose Enabled, specify the image path without quotes in the box show in the window.

This setting allows you to force a specific default lock screen image by entering the path (location) of the image file. This setting lets you specify the default lock screen image shown when no user is signed in, and also sets the specified image as the default for all users (it replaces the inbox default image).

After making changes click Apply followed by OK.

Here you will also see Prevent changing lock screen image setting. Enable it.

This setting prevents users from changing the background image shown when the machine is locked. By default, users can change the background image shown when the machine is locked. If you enable this setting, the user will not be able to change their lock screen image, and they will instead see the default image

When Force a specific default lock screen image is used in conjunction with the Prevent changing lock screen image setting, you can always force the specified lock screen image to be shown.

Read: How to disable the lock screen in Windows.

Prevent users from changing Start Screen in Windows 8.1/10

In the same Group Policy path, you will see another setting Prevent changing Start Menu background. Enable this setting to prevent users from changing the Start Screen background in Windows 8.

This setting prevents users from changing the look of their start menu background, such as its color or accent. By default, users can change the look of their start menu background, such as its color or accent.If you enable this setting, the user will be assigned the default start menu background and colors and will not be allowed to change them.

To disable changing the Start Screen backgroun, in the same Registry path as shown above, create a new D-WORD (32-bit) value. name it NoChangingStartMenuBackground and give it a value of 1.

Reboot to see the results.

See this post if Windows 10 Lock Screen grayed out or blacked out.

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An Electrical Engineer by profession, Kapil is a Microsoft MVP and a Microsoft Content Creator. Please read the entire post & the comments first & create a system restore point before making any changes to your system.