Download, Fix, and Update Luna.mst

Last Updated: 11/29/2023
[Time Needed for Reading: ~4-6 minutes]

luna Theme for Windows files, such as luna.mst, are considered a type of Win32 DLL (Executable application) file. They are associated with the MST file extension, developed by Microsoft for luna Theme for Windows.

The first version of luna.mst for Windows XP was introduced on 10/25/2001 in Windows XP. This file release marks the latest and most updated version from Microsoft.

In this short article, you will discover detailed file information, steps for troubleshooting MST file problems with luna.mst, and list of free downloads for every version that exists in our comprehensive file directory.

File Analysis Provided by Jason Geater (Author)


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Compatible with Windows 11, 10, 8, 7, Vista, XP and 2000

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File Overview


General Information
File Name: luna.mst
File Extension: MST file extension
Description: luna Theme for Windows
Object File Type: Executable application
File Operating System: Windows NT 32-bit
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: Microsoft
Software Program: luna Theme for Windows
Legal Copyright: Copyright © 2000
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x0000


What are luna.mst Error Messages?


luna.mst Runtime Errors

Runtime errors are Windows errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these MST errors are triggered when luna.mst is attempted to be loaded either when Windows is starting up, or in some cases already running. Runtime errors are the most common form of MST error you will encounter using Windows.

In most cases, luna.mst runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these luna.mst error messages mean that Windows was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, Windows will be unable to start without resolving these errors.

Some of the most common luna.mst errors include:

  • luna.mst - Bad Image.
  • luna.mst Application Error.
  • luna.mst could not be found.
  • luna.mst could not be installed.
  • luna.mst could not be launched. Class not registered.
  • luna.mst could not be started.
  • luna.mst failed to initialize properly.
  • luna.mst has encountered a problem and needs to close. We are sorry for the inconvenience.
  • luna.mst is not a valid Win32 application.
  • luna.mst is not running.
  • Cannot find luna.mst.
  • Error starting program: luna.mst.
  • Faulting Application Path: luna.mst.
  • The file luna.mst is missing or corrupt.
  • Windows failed to start - luna.mst.
System Error


The program can’t start because luna.mst is missing from your computer. Try reinstalling the program to fix this problem.

Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

Finding the source of the luna.mst error is key to properly resolving these errors. Although most of these MST errors affecting luna.mst will happen during startup, occasionally you will encounter a runtime error while using luna Theme for Windows. This can occur due to poor programming on behalf of Microsoft, conflicts with other software or 3rd-party plug-ins, or caused by damaged and outdated hardware. Also, these types of luna.mst errors can occur if it has been accidentally moved, deleted, or corrupted by a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.



How to Fix luna.mst Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your luna.mst issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the luna.mst error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing luna.mst file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt luna.mst files (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "cmd" but DO NOT PRESS "ENTER".
  3. Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
  4. You'll be prompted with a permission dialog box.
  5. In the box, click "YES".
  6. You should have a black screen with a blinking cursor.
  7. In that black screen, type "sfc /scannow" and hit "ENTER".
  8. SFC will begin scanning for luna.mst issues and any other system file problems.
  9. Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many luna.mst error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the luna.mst error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.



If Those Steps Fail: Download and Replace Your luna.mst File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate luna.mst file version. We maintain a comprehensive database of 100% malware-free luna.mst files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download luna.mst Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy the file into the appropriate directory for your Windows version:

  4. Windows XP: C:\WINDOWS\system32\dllcache\
  5. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows XP.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve luna.mst problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.



Download luna.mst Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying luna.mst to your appropriate Windows system directory. Microsoft typically does not release Windows MST files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing luna.mst and all other MST files for Windows. An incorrectly installed MST file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows XP


Files Related to luna.mst


MST Files Related to luna.mst

File Name Description Software Program (Version) File Size (bytes) File Location
luna.mst luna Theme for Windows luna Theme for Windows (1, 0, 0, 1) 4190352 C:\Windows\System32\winevt\Logs\

Other Files Related to luna.mst

File Name Description Software Program (Version) File Size (bytes) File Location
OneX_v1.xsd XML Schema Definition Windows 7 5957 C:\Windows\L2Schemas\
OneX_v1.xsd XML Schema Definition Windows XP 5957 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Windows 7 6201 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Microsoft Office Access 2010 14 6201 C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...
WLANAP_profile_v1.xsd XML Schema Definition Windows 7 7504 C:\Windows\L2Schemas\


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