How to Repair Logon.admx? Download Now

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

Logon.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 Logon.admx related errors on your device. You can also download Logon.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 Logon.admx
File extension ADMX
Type System
Description Windows Group Policy Language-neutral
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 10420
Oldest file 2006-11-02
MIME type application/xml

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

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



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


Problems related to Logon.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 Logon.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of Logon.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 Logon.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 Logon.admx
System Windows 10
File size 10420 bytes
Date 2017-03-18
File details
MD5 80ffeb8cc533fefb344494f4f7a4cd5b
SHA1 47b49f545b2eb210d80e90eb7dc816c5af945ce0
SHA256 8780609d2586c61f1cdaeeb5138a06d8e157897120a0287a4ca5910155cb4377
CRC32 c145837a
Example file location C:\Windows\PolicyDefinitions\
Filename Logon.admx
System Windows 8.1
File size 9810 bytes
Date 2014-11-21
File details
MD5 c75838c684ab96e002cacafbc0cdfacb
SHA1 1d424351f48391c1b02e4ae03890173ae6146a40
SHA256 0fd37894b19356c9160cbb33f802f9b9e3cc53154290d671bc31d9fdc72c2b36
CRC32 ed61365d
Example file location C:\Windows\PolicyDefinitions\
Filename Logon.admx
System Windows 8
File size 9263 bytes
Date 2012-06-02
File details
MD5 bd976c448c6260ce91d95126b4dc27f8
SHA1 5ddec6ce83cadbec529f58ca62038bcf6d8c2190
SHA256 d28ca4815f12e5ff37d22aa190e61655460d2513c75d84c2936cb6b72530db32
CRC32 492f705d
Example file location 1: C:\Windows\PolicyDefinitions\
Filename Logon.admx
System Windows 7
File size 7130 bytes
Date -0001-11-30
File details
MD5 c9ef487073bd1e38f25545e2537e2008
SHA1 b1400f59b62456d9b1aa97efeadb190f42d9e652
SHA256 f3580313b241972247ee52ab7f951d3f205ca3a3a2880ce991ebeeb07118d0b3
CRC32 2a5b5fe3
Example file location C:\Windows\PolicyDefinitions\
Filename Logon.admx
System Windows Vista
File size 6633 bytes
Date -0001-11-30
File details
MD5 942b987d4f63a7297ff4f995c962400f
SHA1 a6891079d5535ee858eb21f7c1dab6b626df8576
SHA256 9399b1fcd3c23c42492e9033fbd36113b9acb08ae08115b02bda780b5f9a4961
CRC32 6e7431e2
Example file location C:\Windows\PolicyDefinitions\