Troubleshoot web.config Errors and Download File

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

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

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

File info

General information
Filename web.config
File extension CONFIG
Type Developer
Description Configuration
Software
Program Windows 10
Software Windows
Author Microsoft
Software version 10
Details
File size 43133
Oldest file 2006-09-18
MIME type application/xml
web.config

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

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

web.config

Error

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

OK

Problems related to web.config 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 web.config 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.

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

The last solution is to manually download and replace web.config 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 web.config file.

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

  • Windows 10: C:\Windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETWebAdminFiles\
  • Windows 10: C:\Windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETWebAdminFiles\
  • Windows 7: ---
  • Windows 7: ---
  • Windows Vista: ---
  • Windows 8.1: ---
  • Windows 8.1: ---
  • Windows 8: ---
  • Windows 8: ---
  • Windows Vista: ---

If the steps did not solve your web.config 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 web.config
System Windows 10
File size 1040 bytes
Date -0001-11-30
File details
MD5 d8f68b3e54bb56d05cd5f9c425d69dca
SHA1 cbedfc85666f039bd07776f1e30467b3be58bac7
SHA256 74d5e9cd7607bbbddc2fc557fa4f43e57bfd20ff847e17d7bde44290304abe91
CRC32 3c354822
Example file location C:\Windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETWebAdminFiles\
Filename web.config
System Windows 10
File size 43133 bytes
Date -0001-11-30
File details
MD5 dba095be9ed0c4256dcde6b310a3a41a
SHA1 4a0c0f1ba658557d0017e8d961d33693290872b5
SHA256 a6cb511fe84746810bc08d973201cae5ba337bcc649b08376e1d5e4d0d3d4367
CRC32 3bd8c275
Example file location C:\Windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETWebAdminFiles\
Filename web.config
System Windows 7
File size 30052 bytes
Date -0001-11-30
File details
MD5 16abb68c2e797e8d24426f4f601feaeb
SHA1 f3defa82b112395c06281f971489699b61c66613
SHA256 d7de50c9af8d6090d3b19f3403e69609b898c6beb55872ea61f1981fa67802fc
CRC32 c0504bab
Example file location ---
Filename web.config
System Windows 7
File size 716 bytes
Date -0001-11-30
File details
MD5 98cf91fa5703fb6c704e00b72519d94a
SHA1 25a45c55d694afdf6831fda90513befcd651f5bd
SHA256 61a3fc868a20aa62079876c73b4d26fcb069613528dbdb2225f9fc2a4389984c
CRC32 96cdbc36
Example file location ---
Filename web.config
System Windows Vista
File size 31023 bytes
Date -0001-11-30
File details
MD5 80085488c9072ab0fe5572caaba70b38
SHA1 8200fb97615d1922eadc25a37b3a4e91426d422a
SHA256 3ec998756726c09526fab52840b0dac4949f9bf2e16eeb633dd04327718ab194
CRC32 74dcc894
Example file location ---
Filename web.config
System Windows 8.1
File size 1040 bytes
Date -0001-11-30
File details
MD5 d8f68b3e54bb56d05cd5f9c425d69dca
SHA1 cbedfc85666f039bd07776f1e30467b3be58bac7
SHA256 74d5e9cd7607bbbddc2fc557fa4f43e57bfd20ff847e17d7bde44290304abe91
CRC32 3c354822
Example file location ---
Filename web.config
System Windows 8.1
File size 43133 bytes
Date -0001-11-30
File details
MD5 dba095be9ed0c4256dcde6b310a3a41a
SHA1 4a0c0f1ba658557d0017e8d961d33693290872b5
SHA256 a6cb511fe84746810bc08d973201cae5ba337bcc649b08376e1d5e4d0d3d4367
CRC32 3bd8c275
Example file location ---
Filename web.config
System Windows 8
File size 1040 bytes
Date -0001-11-30
File details
MD5 d8f68b3e54bb56d05cd5f9c425d69dca
SHA1 cbedfc85666f039bd07776f1e30467b3be58bac7
SHA256 74d5e9cd7607bbbddc2fc557fa4f43e57bfd20ff847e17d7bde44290304abe91
CRC32 3c354822
Example file location ---
Filename web.config
System Windows 8
File size 43133 bytes
Date -0001-11-30
File details
MD5 dba095be9ed0c4256dcde6b310a3a41a
SHA1 4a0c0f1ba658557d0017e8d961d33693290872b5
SHA256 a6cb511fe84746810bc08d973201cae5ba337bcc649b08376e1d5e4d0d3d4367
CRC32 3bd8c275
Example file location ---
Filename web.config
System Windows Vista
File size 716 bytes
Date -0001-11-30
File details
MD5 98cf91fa5703fb6c704e00b72519d94a
SHA1 25a45c55d694afdf6831fda90513befcd651f5bd
SHA256 61a3fc868a20aa62079876c73b4d26fcb069613528dbdb2225f9fc2a4389984c
CRC32 96cdbc36
Example file location ---