Troubleshoot WPN.adml Errors and Download File

Sometimes Windows system displays error messages regarding corrupted or missing WPN.adml 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 WPN.adml file can therefore effect in failed execution of the started process.

WPN.adml file Group Policy Language-Specific Administrative Template. 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 WPN.adml related errors on your device. You can also download WPN.adml file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8

File info

General information
Filename WPN.adml
File extension ADML
Type System
Description Group Policy Language-Specific Administrative Template
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 8014
Oldest file 2012-07-26
MIME type application/xml

There are various types of errors related to WPN.adml file. WPN.adml 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 WPN.adml file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to WPN.adml 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 WPN.adml 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.

WPN.adml 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 WPN.adml 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 WPN.adml 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 WPN.adml 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 WPN.adml file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the WPN.adml 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 WPN.adml 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 WPN.adml 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 WPN.adml file

The last solution is to manually download and replace WPN.adml 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 WPN.adml file.

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

  • Windows 10: C:\Windows\PolicyDefinitions\en-US\
  • Windows 8.1: C:\Windows\PolicyDefinitions\en-US\
  • Windows 8: 1: C:\Windows\PolicyDefinitions\en-US\

If the steps did not solve your WPN.adml 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 WPN.adml
System Windows 10
File size 8014 bytes
Date 2017-03-18
File details
MD5 2958a33ec26f26185938cadcad4c25f3
SHA1 e99aa402a2eb1d8188491bd0146ca867ff1b0dc5
SHA256 f6498b29d22d25ea14904870a7f18dfe56791aae8b482a9375e40c45cec8a5ca
CRC32 f1a9fd53
Example file location C:\Windows\PolicyDefinitions\en-US\
Filename WPN.adml
System Windows 8.1
File size 7410 bytes
Date 2014-11-21
File details
MD5 77c2a2eb749ebca17124b632612ce191
SHA1 3b7f2e4594db1d354755184c0127825f6a81e7d5
SHA256 058509712bf20a49cc276bdf4ab6b0ccdc3550501da0f2c4529e234e9aae6068
CRC32 ffe5c77c
Example file location C:\Windows\PolicyDefinitions\en-US\
Filename WPN.adml
System Windows 8
File size 3891 bytes
Date 2012-07-26
File details
MD5 f4277a662dd57f75a891b5d86aab5229
SHA1 43b3f6c7e9da82d7cd429d8de28925f5c7f52b3b
SHA256 66b7799b19e072e2f397292c989a64269d938de835f4b6d58161616db946ebff
CRC32 c858e85c
Example file location 1: C:\Windows\PolicyDefinitions\en-US\