How to Prevent Changes to Lock Screen and Logon Images in Windows

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To prevent users from changing the lock screen and logon image in Windows, there are two primary methods you can use: Local Group Policy Editor and Registry Editor. The approach you choose depends on your Windows edition and personal preference.

Using Local Group Policy Editor

This method is available in Windows 10/11 Pro, Enterprise, and Education editions.

  1. Open the Local Group Policy Editor
    • Press Windows key + R to open the Run dialog.
    • Type gpedit.msc and press Enter.
  2. Navigate to the Policy Location
    • Go to Computer Configuration > Administrative Templates > Control Panel > Personalization.
  3. Edit the Policy
    • Find the “Prevent changing lock screen and logon image” policy.
    • Double-click to open and set it to ‘Enabled’ to prevent changes.
  4. Apply Changes
    • Click ‘Apply’, then ‘OK’ to save the settings.

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Using Registry Editor

This method is applicable for all editions of Windows, including Home editions.

  1. Open Registry Editor
    • Press Windows key + R to open the Run dialog.
    • Type regedit and press Enter.
  2. Navigate to the Registry Key
    • Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization.
  3. Modify or Create Value
    • Look for the NoChangingLockScreen value. If it doesn’t exist, create a new DWORD (32-bit) Value named NoChangingLockScreen.
    • Set the value of NoChangingLockScreen to 1.
  4. Apply Changes
    • Click ‘OK’ to apply changes.
    • Restart your computer for the changes to take effect.

Modifying your Group Policy or Registry can affect your system’s behavior, so follow the steps carefully. You should back up your system or create a system restore point before making such changes.

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