Microsoft Windows Live Essentials 2012 DAT wlmfilter.dat

Repair Wlmfilter.dat Issues (How to Download and Fix)

Last Updated: 01/01/2024
[Time to Read Article: 5 minutes]

wlmfilter.dat is considered a type of SmartScreen Data File file. It is most-commonly used in Windows Live Mail developed by Microsoft. It uses the DAT file extension and is considered a Win32 DLL (Executable application) file.

The first version of wlmfilter.dat for Windows Live Essentials 2012 16.4.3528.331 was seen on 09/12/2017 in Windows 10. According to our records, this release is the only version of this file offered by Microsoft.

Continue reading below to discover detailed file information, DAT file troubleshooting, and free downloads of several versions of wlmfilter.dat.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information ✻
File Name: wlmfilter.dat
File Extension: DAT file extension
Description: SmartScreen Data File
Object File Type: Executable application
File Operating System: Win32
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: Microsoft Corp.
Software Program: Windows Live Mail
Legal Copyright: Copyright © 1995-2010 Microsoft Corp.
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x0000
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What are wlmfilter.dat Error Messages?


Dynamic Link Library wlmfilter.dat Errors

wlmfilter.dat is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like wlmfilter.dat, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. Windows Live Essentials 2012) could share the same wlmfilter.dat file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DAT file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when wlmfilter.dat is attempted to be loaded either when Windows Live Essentials 2012 is starting up, or in some cases already running. Some of the most common wlmfilter.dat errors include:

Your wlmfilter.dat file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Windows Live Essentials 2012), or deleted by a malware infection. Furthermore, wlmfilter.dat file corruption could be caused from a power outage when loading Windows Live Essentials 2012, system crash while loading wlmfilter.dat, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix wlmfilter.dat 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 wlmfilter.dat 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 wlmfilter.dat error, please proceed to the Step 2 below.

Step 2: If recently installed Windows Live Essentials 2012 (or related software), uninstall then try reinstalling Windows Live Essentials 2012 software.

You can uninstall Windows Live Essentials 2012 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 Windows Live Essentials 2012 16.4.3528.331 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Windows Live Essentials 2012 software.

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

Windows Live Essentials 2012 16.4.3528.331

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 wlmfilter.dat 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 wlmfilter.dat error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your wlmfilter.dat 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 wlmfilter.dat file version. We maintain a comprehensive database of 100% malware-free wlmfilter.dat files for every applicable version of Windows Live Essentials 2012. 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 wlmfilter.dat Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Windows Live Essentials 2012 folder location:
    Windows 10: C:\Program Files (x86)\Windows Live\Mail\
  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 wlmfilter.dat 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.

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Download wlmfilter.dat Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying wlmfilter.dat to your appropriate Windows system directory. Microsoft typically does not release Windows Live Essentials 2012 DAT 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 wlmfilter.dat and all other DAT files for Windows Live Essentials 2012. An incorrectly installed DAT file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
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Files Related to wlmfilter.dat


DAT Files Related to wlmfilter.dat

File Name Description Software Program (Version) File Size (bytes) File Location
9WZDNCRFHWD2.dat Game Data Windows Live Essentials 2012 16.4.3528.331 480 C:\Windows\Temp\B58DFF49-F6FB-4B24-94C1-49546C3...
cache.dat Game Data Windows Live Essentials 2012 16.4.3528.331 267736 C:\Windows\Panther\UnattendGC\
MSIMGSIZ.DAT Game Data Windows Live Essentials 2012 16.4.3528.331 49120 C:\Windows\System32\
9WZDNCRD29V9.dat Game Data Windows Live Essentials 2012 16.4.3528.331 470 C:\Windows\Temp\08ACFE44-A683-4CD0-AC82-7CC6E55...
9WZDNCRFJBMP.dat Game Data Windows Live Essentials 2012 16.4.3528.331 464 C:\Windows\Temp\C5BAD64E-AB97-4A78-83B0-EAFDF9F...

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OneX_v1.xsd XML Schema Definition Windows XP 5957 C:\Windows\L2Schemas\
WLAN_profile_v1.xsd XML Schema Definition Windows 8.1 16142 C:\Windows\L2Schemas\
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LAN_profile_v1.xsd XML Schema Definition Windows 8 2241 C:\Windows\L2Schemas\
LAN_policy_v1.xsd XML Schema Definition Windows 7 3472 C:\Windows\L2Schemas\


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