How to Fix Windows.Internal.Devices.Lights.BacklightServer.dll Missing Error – Step by Step

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How to Fix Windows.Internal.Devices.Lights.BacklightServer.dll Missing Error (Solved)

How to Fix Windows.Internal.Devices.Lights.BacklightServer.dll Missing Error (Solved)

What is Windows.Internal.Devices.Lights.BacklightServer.dll?

Windows.Internal.Devices.Lights.BacklightServer.dll is a Dynamic Link Library (DLL) file that is associated with the Backlight control in Windows operating systems. This DLL file helps manage the backlight settings for devices such as laptops monitors and mobile devices.

Why is Windows.Internal.Devices.Lights.BacklightServer.dll missing?

The Windows.Internal.Devices.Lights.BacklightServer.dll file can become missing due to several reasons including:

  • Malware infection: Malicious software may accidentally delete or corrupt the DLL file.
  • Accidental deletion: The user might have intentionally or unintentionally deleted the DLL file.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

The missing DLL file might be a dependent of the Visual C++ Redistributable packages. To resolve this issue reinstalling these packages can help.

  1. Download the appropriate version of Visual C++ Redistributable from Microsoft’s official website: https://support.microsoft.com/en-us/topic/download-the-latest-visual-c-redistributable-2019-8e63d74b-5f47-4660-bda4-f389db98aebc
  2. Run the downloaded setup file and follow the installation instructions.

Method 2: Run SFC /scannow command

Running the System File Checker (SFC) can help repair missing or corrupted system files which might include the Windows.Internal.Devices.Lights.BacklightServer.dll file.

  1. Press the Windows key + X and select “Command Prompt (Admin)” or “PowerShell (Admin)” from the menu.
  2. In the command prompt type `sfc /scannow` and press Enter.
  3. Wait for the scan to complete. If any issues are found follow the on-screen instructions to repair them.

Method 3: Update System Drivers

Updating the system drivers can help resolve compatibility issues with the Windows.Internal.Devices.Lights.BacklightServer.dll file.

  1. Press the Windows key + X and select “Device Manager” from the menu.
  2. In the Device Manager expand the category containing your device (e.g. Display adapters).
  3. Right-click on the device driver and select “Update Driver”.
  4. Choose “Search automatically for updated driver software” and follow the instructions to install the latest driver version.

Conclusion

The Windows.Internal.Devices.Lights.BacklightServer.dll error can be frustrating but it is fixable with a few methods. By reinstalling Visual C++ Redistributable running the SFC /scannow command and updating system drivers you should be able to resolve this issue.

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