How to Fix Issues with MSTH3AM.LEX (Free Download)

Last Updated: 11/26/2023
[Average Read Time: 4.5 minutes]

Adobe Linguistic Library Data files such as MSTH3AM.LEX utilize the LEX file extension. This file is considered a Data (Adobe Linguistic Library Data) file, and was first created by Microsoft for the Microsoft Office Home & Student 2007 software package.

MSTH3AM.LEX was first released in the Windows XP Operating System on 05/31/2001 with Office XP. The most recent version [file version 2007] was introduced on 07/11/2007 for Microsoft Office Home & Student 2007. MSTH3AM.LEX is included with Microsoft Office Home & Student 2007, Microsoft Office Project Standard 2007 12, and Microsoft Office Outlook 2007 12.

Please continue reading to find your correct MSTH3AM.LEX file version download (free), detailed file information, and LEX file troubleshooting instructions.

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File Overview


General Information
File Name: MSTH3AM.LEX
File Extension: LEX file extension
File Type: Data
Description: Adobe Linguistic Library Data
User Popularity Rating:
 
Developer and Software Information
Software Program: Microsoft Office Home & Student 2007
Developer: Microsoft
Software: Microsoft Office Home & Student
Software Version: 2007
File Details
File Size (Bytes): 1350186
Oldest File Date: 05/10/2017
Latest File Date: 02/15/2020


What are MSTH3AM.LEX Error Messages?


General MSTH3AM.LEX Runtime Errors

MSTH3AM.LEX file errors often occur during the startup phase of Microsoft Office Home & Student, but can also occur while the program is running. These types LEX errors are also known as “runtime errors” because they occur while Microsoft Office Home & Student is running. Here are some of the most common MSTH3AM.LEX runtime errors:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Program Files (x86)\Common Files\microsoft shared\PROOF\MSTH3AM.LEX

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.


Most LEX errors are due to missing or corrupt files. Your MSTH3AM.LEX file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Microsoft Office Home & Student), or deleted by a malware infection. Furthermore, MSTH3AM.LEX file corruption could be caused from a power outage when loading Microsoft Office Home & Student, system crash while loading or saving MSTH3AM.LEX, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.



How to Fix MSTH3AM.LEX 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 MSTH3AM.LEX 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 MSTH3AM.LEX error, please proceed to the Step 2 below.

Step 2: If recently installed Microsoft Office Home & Student (or related software), uninstall then try reinstalling Microsoft Office Home & Student software.

You can uninstall Microsoft Office Home & Student 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 Home & Student 2007 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Microsoft Office Home & Student software.

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

Microsoft Office Home & Student 2007

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 MSTH3AM.LEX 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 MSTH3AM.LEX 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 MSTH3AM.LEX 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 MSTH3AM.LEX file version. We maintain a comprehensive database of 100% malware-free MSTH3AM.LEX files for every applicable version of Microsoft Office Home & Student. 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 MSTH3AM.LEX Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Microsoft Office Home & Student folder location:
    Windows XP: C:\Program Files\Common Files\Microsoft Shared\PROOF\
    Windows XP: C:\Program Files\Common Files\Microsoft Shared\PROOF\
    Windows Vista: C:\Program Files (x86)\Common Files\microsoft shared\PROOF\
    Windows 10: C:\Program Files (x86)\Common Files\microsoft shared\PROOF\
    Windows 10: C:\Program Files (x86)\Common Files\microsoft shared\PROOF\
    Show 1 more directory +
    Windows 10: C:\Program Files (x86)\Common Files\microsoft shared\PROOF\
  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 MSTH3AM.LEX 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 MSTH3AM.LEX Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying MSTH3AM.LEX to your appropriate Windows system directory. Microsoft typically does not release Microsoft Office Home & Student LEX 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 MSTH3AM.LEX and all other LEX files for Microsoft Office Home & Student. An incorrectly installed LEX file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
Windows XP
Windows Vista


Files Related to MSTH3AM.LEX


LEX Files Related to MSTH3AM.LEX

File Name Description Software Program (Version) File Size (bytes) File Location
MSTH3AM.LEX Adobe Linguistic Library Data Microsoft Office Home & Student 2007 1350186 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
WT61ES.LEX Adobe Linguistic Library Data Microsoft Office Home & Student 2007 678912 C:\Windows\SysWOW64\
MSWDS_FR.LEX Adobe Linguistic Library Data Microsoft Office Home & Student 2007 295663 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
MSGR3FR.LEX Adobe Linguistic Library Data Microsoft Office Home & Student 2007 25 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
MSWDS_EN.LEX Adobe Linguistic Library Data Microsoft Office Home & Student 2007 444027 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...

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OneX_v1.xsd XML Schema Definition Windows 8 5957 C:\Windows\L2Schemas\
OneX_v1.xsd XML Schema Definition Windows XP 5957 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Windows 8 6201 C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd XML Schema Definition Windows 8 7504 C:\Windows\L2Schemas\
WLAN_profile_v1.xsd XML Schema Definition Windows 8 15591 C:\Windows\L2Schemas\


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