Fix Windows.admx Errors

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

Windows.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 Windows.admx related errors on your device. You can also download Windows.admx file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista

File info

General information
Filename Windows.admx
File extension ADMX
Type System
Description Windows Group Policy Language-neutral
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 22393
Oldest file 2008-01-21
MIME type application/xml

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

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



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


Problems related to Windows.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 Windows.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.

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

The last solution is to manually download and replace Windows.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 Windows.admx file.

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

  • Windows 10: C:\Windows\PolicyDefinitions\
  • Windows 8.1: C:\Windows\PolicyDefinitions\
  • Windows 8: 1: C:\Windows\PolicyDefinitions\
  • Windows 7: C:\Windows\PolicyDefinitions\
  • Windows Vista: C:\Windows\PolicyDefinitions\

If the steps did not solve your Windows.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 Windows.admx
System Windows 10
File size 22393 bytes
Date 2017-03-18
File details
MD5 313792ab8866c97fb3b6e0381046fa61
SHA1 a111111385330910269e0a612e965a2b9c90c672
SHA256 79ae3140a82265d05136882d088569984fa4d60e13eecaebe83e0c55c1fc8185
CRC32 21be33b9
Example file location C:\Windows\PolicyDefinitions\
Filename Windows.admx
System Windows 8.1
File size 17368 bytes
Date 2014-11-21
File details
MD5 cb213251d2f35503bdde79039419fe5a
SHA1 0cb8f2e149394b1d1010a108118e890dc8862e15
SHA256 5027afb2c844ca5fdd6345ccb480755393872394ed5120515c457478f1ede384
CRC32 154bbc55
Example file location C:\Windows\PolicyDefinitions\
Filename Windows.admx
System Windows 8
File size 16489 bytes
Date 2012-06-02
File details
MD5 11216b2d07b2f356ff6b37c723e49c4d
SHA1 9c795d34b43fded4636051f1cc77c17e992621aa
SHA256 81d53af5d3ddec1c502c67102c979242cb397e2ff2ef2b0c2736b7154617af1d
CRC32 7493882b
Example file location 1: C:\Windows\PolicyDefinitions\
Filename Windows.admx
System Windows 7
File size 14532 bytes
Date -0001-11-30
File details
MD5 c677963f5b450387a45ca382b2e93690
SHA1 da25fb6930962b8270dfaa31a5ea6bd11a9def18
SHA256 6fd18a984609e158d1625028cddb1ab52137fac9c4f0933d3160b7885f58d25a
CRC32 699a6ccc
Example file location C:\Windows\PolicyDefinitions\
Filename Windows.admx
System Windows Vista
File size 12029 bytes
Date -0001-11-30
File details
MD5 f9cd0c7cf0983fc3f99f55204b99b3c7
SHA1 9634838f36ce8641c4471315792aa06b03dd2858
SHA256 fac46a914128e02dbf28ce3abc26154d7b0cd249ae662a890d902ee0ed25ad7c
CRC32 2fbba205
Example file location C:\Windows\PolicyDefinitions\