How to Fix Issues with ShellUI.MST (Free Download)

Last Updated: 03/28/2020
[Time to Read Article: 5 minutes]

Microsoft Windows Installer Transform files such as ShellUI.MST utilize the MST file extension. This file is considered a FPX (Microsoft Windows Installer Transform) file, and was first created by Microsoft for the Microsoft Office Professional Plus 2010 (64-bit) 14.0.7015.1000 software package.

The first version of ShellUI.MST for Office 2007 was seen on 01/30/2007 in Windows Vista. The latest version update [v14.0.7015.1000] for Microsoft Office Professional Plus 2010 (64-bit) was 14.0.7015.1000 released on 05/08/2011. ShellUI.MST is included in Microsoft Office Professional Plus 2010 (64-bit) 14.0.7015.1000, Microsoft Visio 14, and Microsoft Office Project Professional 2010 14.

In this article, you will find detailed ShellUI.MST information, a MST file troubleshooting guide, and a list of versions that are available for free download.

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File Overview


General Information
File Name: ShellUI.MST
File Extension: MST file extension
Title: Installation Transform
Subject: Localization Transform for Microsoft Office
File Type: Executable Application
Description: Microsoft Windows Installer Transform
Comments: This Installer database contains the logic and data required to install Microsoft Office.
MIME Type: image/vnd.fpx
User Popularity Rating:
 
Developer and Software Information
Software Program: Microsoft Office Professional Plus 2010 (64-bit) 14.0.7015.1000
Software: Lumiere
Developer: Microsoft
Software: Microsoft Office Professional Plus 2010 (64-bit)
Software Version: 14.0.7015.1000
File Details
File Size (Bytes): 3584
Oldest File Date: 05/10/2017
Latest File Date: 03/04/2020


What are ShellUI.MST Error Messages?


ShellUI.MST Runtime Errors

Runtime errors are Microsoft Office Professional Plus 2010 (64-bit) errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these MST errors are triggered when ShellUI.MST is attempted to be loaded either when Microsoft Office Professional Plus 2010 (64-bit) is starting up, or in some cases already running. Runtime errors are the most common form of MST error you will encounter using Microsoft Office Professional Plus 2010 (64-bit).

In most cases, ShellUI.MST runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these ShellUI.MST error messages mean that Microsoft Office Professional Plus 2010 (64-bit) was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, Microsoft Office Professional Plus 2010 (64-bit) will be unable to start without resolving these errors.

Some of the most common ShellUI.MST errors include:

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


The program can’t start because ShellUI.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 ShellUI.MST error is key to properly resolving these errors. Although most of these MST errors affecting ShellUI.MST will happen during startup, occasionally you will encounter a runtime error while using Microsoft Office Professional Plus 2010 (64-bit) 14.0.7015.1000. 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 ShellUI.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 ShellUI.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 ShellUI.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 ShellUI.MST error, please proceed to the Step 2 below.

Step 2: If recently installed Microsoft Office Professional Plus 2010 (64-bit) (or related software), uninstall then try reinstalling Microsoft Office Professional Plus 2010 (64-bit) software.

You can uninstall Microsoft Office Professional Plus 2010 (64-bit) software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Microsoft Office Professional Plus 2010 (64-bit) 14.0.7015.1000 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Microsoft Office Professional Plus 2010 (64-bit) software.

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

Microsoft Office Professional Plus 2010 (64-bit) 14.0.7015.1000

Microsoft Corporation

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 ShellUI.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 ShellUI.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 ShellUI.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 ShellUI.MST file version. We maintain a comprehensive database of 100% malware-free ShellUI.MST files for every applicable version of Microsoft Office Professional Plus 2010 (64-bit). 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 ShellUI.MST Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Microsoft Office Professional Plus 2010 (64-bit) folder location:
    Windows 10: C:\MSOCache\All Users\{90120000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-1000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-1000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90120000-0115-0409-0000-0000000FF1CE}-C\
    Show 20 more directories +
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90120000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90120000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-1000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-1000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90150000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\Windows\Installer\{91150000-0011-0000-0000-0000000FF1CE}\
    Windows 10: C:\MSOCache\All Users\{90120000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-1000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\
    Windows 10: C:\MSOCache\All Users\{90140000-0115-0409-1000-0000000FF1CE}-C\
    Windows 8: C:\MSOCache\All Users\{90150000-0115-0409-0000-0000000FF1CE}-C\
    Windows 8: C:\Windows\Installer\{91150000-0011-0000-0000-0000000FF1CE}\
    Windows 7: C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\
    Windows 7: C:\Windows\Installer\{91140000-0011-0000-0000-0000000FF1CE}\
    Windows 7: C:\Windows\Installer\{90140000-002A-0000-1000-0000000FF1CE}\
    Windows Vista: C:\MSOCache\All Users\{90120000-0115-0409-0000-0000000FF1CE}-C\
    Windows Vista: C:\Windows\Installer\{91120000-002E-0000-0000-0000000FF1CE}\
    Windows Vista: C:\Windows\Installer\{90120000-002A-0000-1000-0000000FF1CE}\
  4. 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 10.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve ShellUI.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 ShellUI.MST Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying ShellUI.MST to your appropriate Windows system directory. Microsoft typically does not release Microsoft Office Professional Plus 2010 (64-bit) 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 ShellUI.MST and all other MST files for Microsoft Office Professional Plus 2010 (64-bit). 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 10
Windows 8
Windows 7
Windows Vista


Files Related to ShellUI.MST


MST Files Related to ShellUI.MST

File Name Description Software Program (Version) File Size (bytes) File Location
ShellUI.MST Microsoft Windows Installer Transform Microsoft Office Professional Plus 2010 (64-bit) 14.0.7015.1000 3584 C:\MSOCache\All Users\{90140000-0115-0409-1000-...

Other Files Related to ShellUI.MST

File Name Description Software Program (Version) File Size (bytes) File Location
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 Windows 10 6201 C:\Windows\L2Schemas\
WLAN_profile_v1.xsd XML Schema Definition Windows Vista 15591 C:\Windows\L2Schemas\
WLAN_policy_v1.xsd XML Schema Definition Windows Vista 6446 C:\Windows\L2Schemas\


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