Troubleshoot LanmanServer.admx Errors and Download File

Sometimes Windows system displays error messages regarding corrupted or missing LanmanServer.admx files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent LanmanServer.admx file can therefore effect in failed execution of the started process.

LanmanServer.admx file Windows Group Policy Language-neutral. The file was developed by Microsoft for use with Windows software. Here you will find detailed information about the file and instructions how to proceed in the event of LanmanServer.admx related errors on your device. You can also download LanmanServer.admx file compatible with Windows 10, Windows 8.1, Windows 7, Windows 8 devices which will (most probably) allow you to solve the problem.

File info

General information
Filename LanmanServer.admx
File extension ADMX
Type System
Description Windows Group Policy Language-neutral
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 4248
Oldest file 2009-06-10
MIME type application/xml

There are various types of errors related to LanmanServer.admx file. LanmanServer.admx file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to LanmanServer.admx file. If you encounter one listed below (or similar), please consider the following suggestions.

  • LanmanServer.admx is corrupted
  • LanmanServer.admx cannot be located
  • Runtime Error - LanmanServer.admx
  • LanmanServer.admx file error
  • LanmanServer.admx file cannot be loaded. Module was not found
  • cannot register LanmanServer.admx file:
  • LanmanServer.admx file could not be loaded
  • LanmanServer.admx file doesn't exist



Application could not be started because LanmanServer.admx file is missing. Reinstall the application to solve the problem.


Problems related to LanmanServer.admx can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing LanmanServer.admx file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

LanmanServer.admx file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with LanmanServer.admx file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to LanmanServer.admx file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of LanmanServer.admx or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to LanmanServer.admx file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the LanmanServer.admx file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the LanmanServer.admx file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the LanmanServer.admx file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace LanmanServer.admx file

The last solution is to manually download and replace LanmanServer.admx file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded LanmanServer.admx file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of LanmanServer.admx file example directory paths.

  • Windows 10: C:\Windows\PolicyDefinitions\
  • Windows 8.1: C:\Windows\PolicyDefinitions\
  • Windows 7: C:\Windows\PolicyDefinitions\
  • Windows 8: ---

If the steps did not solve your LanmanServer.admx file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename LanmanServer.admx
System Windows 10
File size 4248 bytes
Date 2017-03-18
File details
MD5 b7571ad2f596154530631bfd30341d82
SHA1 19c0ba666c277f01db3df76aa957796d2dcf4837
SHA256 749ac02bd7c818c6ac2ac4610943d131cc6a74f6db8c3eaa1611a5115b74e85c
CRC32 ed00fbb8
Example file location C:\Windows\PolicyDefinitions\
Filename LanmanServer.admx
System Windows 8.1
File size 3027 bytes
Date 2012-06-02
File details
MD5 472d255699a7f5e1645304c64caad168
SHA1 751531ef9921620a6e3291e8b0939792d390ac50
SHA256 93946e2ab6e44530dfd6fba002e4f9cc2163ba628dc3404883c76c2e5e88e3df
CRC32 32367e4c
Example file location C:\Windows\PolicyDefinitions\
Filename LanmanServer.admx
System Windows 7
File size 1912 bytes
Date 2009-06-10
File details
MD5 37696f74fa96512d2a106666ad190436
SHA1 f8be762b82810b72a3c150ae06f6cc70956fbac1
SHA256 a55d72f6241188fccb8c8222fe13cbdc640011751255c1a2ba8f4c146d0095a8
CRC32 c2828c9b
Example file location C:\Windows\PolicyDefinitions\
Filename LanmanServer.admx
System Windows 8
File size 3027 bytes
Date 2012-06-02
File details
MD5 472d255699a7f5e1645304c64caad168
SHA1 751531ef9921620a6e3291e8b0939792d390ac50
SHA256 93946e2ab6e44530dfd6fba002e4f9cc2163ba628dc3404883c76c2e5e88e3df
CRC32 32367e4c
Example file location ---