authfwcfg.dll Informations - Download and Fix

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

authfwcfg.dll file Windows Firewall with Advanced Security Configuration Helper. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of authfwcfg.dll related errors on your device. You can also download authfwcfg.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, 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 7, Windows Vista, Windows Vista

File info

General information
Filename authfwcfg.dll
File extension DLL
Description Windows Firewall with Advanced Security Configuration Helper
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Dynamic link library
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)

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

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



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


Problems related to authfwcfg.dll 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 authfwcfg.dll 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.

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

The last solution is to manually download and replace authfwcfg.dll 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 authfwcfg.dll file.

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

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows Vista: ---
  • Windows Vista: ---

If the steps did not solve your authfwcfg.dll 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 authfwcfg.dll
System Windows 10
File size 352768 bytes
Date 2017-03-18
File details
MD5 5903fce00df356b2ceea4f569e71a6af
SHA1 c5be3ce9b16989cc53211159e4e709d614024120
SHA256 a7fefbf24c5c89e871959820ca0867d26068ad3f39fc9bfdf2cb6902455385ed
CRC32 3117f414
Example file location C:\Windows\System32\
Filename authfwcfg.dll
System Windows 8.1
File size 364032 bytes
Date 2014-11-21
File details
MD5 c4bddbc91bab70975593755620fa3e80
SHA1 c42627e930fa0b6b6de131fe61a681fa291c8ace
SHA256 3bc2c0a7c31b544bfe970b5d4dda81d6f0c3d1fc29c642a37d795c7afe3c8440
CRC32 fdb8597b
Example file location C:\Windows\System32\
Filename authfwcfg.dll
System Windows 8
File size 374784 bytes
Date 2012-07-26
File details
MD5 2d9dff2dc68a32cbd0ef32e75ce64862
SHA1 6c22775f52edcb652f99749d3a52edb02cae11f6
SHA256 0c26c49c9e64e6c001200b431f29c193f6789cb7129845e43cf42ac2f1d0b729
CRC32 6cb73fdf
Example file location 1: C:\Windows\System32\
Filename authfwcfg.dll
System Windows 7
File size 491520 bytes
Date 2009-07-14
File details
MD5 55f1c5eff3d81ee93b0691ffc610bcf2
SHA1 494d73efff871f3646b9fd07c4e9c0e6341f5f43
SHA256 cbab1bd8caeba0086ceda124e42bef1adb807310a2126938138980ea04f2b54a
CRC32 d2b1b83e
Example file location C:\Windows\System32\
Filename authfwcfg.dll
System Windows 7
File size 334336 bytes
Date -0001-11-30
File details
MD5 7b3a07bb31ad831c4f66b08ecead2209
SHA1 0f91c07591a1bc97cdc9df2949f8b7536eaec232
SHA256 e1c0d1eaaa4be1bd84eb5adfa5856d7697e94978583d959d5b147fc202d031ef
CRC32 4b65c2b2
Example file location C:\Windows\System32\
Filename authfwcfg.dll
System Windows Vista
File size 398336 bytes
Date 2008-01-21
File details
MD5 4e7c1e0470c565065fb870b14e96ee02
SHA1 9e0732eec91aea8447b8740ede7a9e6e240e8666
SHA256 07a74ea37878109df315e9d2d4ee04e50166304f9be9a91a90afb3be2009c640
CRC32 0848c908
Example file location ---
Filename authfwcfg.dll
System Windows Vista
File size 251904 bytes
Date -0001-11-30
File details
MD5 f35d79e64e1d38afd0ff5c123b979f15
SHA1 6900caeb930a7c6020cc54436308eda7d1bf0cde
SHA256 9722af48cebb74f965e2dad3ce8b7aa2761093de396ae4afd34fb723d6f8b95e
CRC32 40411507
Example file location ---