How to Repair devmgr.CHM? Download Now

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

devmgr.CHM file Compiled HTML Help. 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 devmgr.CHM related errors on your device. You can also download devmgr.CHM file compatible with Windows 8, Windows 7, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 8, Windows 7, Windows Vista, Windows XP

File info

General information
Filename devmgr.CHM
File extension CHM
Type Compiled HTML Help
Description Compiled HTML Help
Program Windows 8
Software Windows
Author Microsoft
Software version 8
MIME type application/x-chm
Language cod English (U.S.)

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

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



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


Problems related to devmgr.CHM 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 devmgr.CHM 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.

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

The last solution is to manually download and replace devmgr.CHM 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 devmgr.CHM file.

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

  • Windows 8: C:\Windows\Help\mui\0409\
  • Windows 7: C:\Windows\Help\mui\0409\
  • Windows Vista: C:\Windows\Help\mui\0409\
  • Windows XP: C:\WINDOWS\Help\

If the steps did not solve your devmgr.CHM 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 devmgr.CHM
System Windows 8
File size 26446 bytes
Date 2012-07-26
File details
MD5 c5d6b40187dfe60f19c8eb6bccc71621
SHA1 919a85b202c5849d0098866d14a7865650f6791e
SHA256 4f53c66000044e77a5868ed15c732846ddfbe85e3c7b61b5bd8257a927f5a22e
CRC32 9ed61366
Example file location C:\Windows\Help\mui\0409\
Filename devmgr.CHM
System Windows 7
File size 252657 bytes
Date -0001-11-30
File details
MD5 969cf6160af265694b278aaed3042aba
SHA1 88abdef055480f6d6b963c211a4c6c04c8156611
SHA256 a2979ad46c2b2d89e3484f861a9b238bf15c314ba0e86760aea398505ac5bf68
CRC32 38c15831
Example file location C:\Windows\Help\mui\0409\
Filename devmgr.CHM
System Windows Vista
File size 92987 bytes
Date -0001-11-30
File details
MD5 021f10c363dd9ebde0acc6499fb9f75a
SHA1 56af86c786a411a3025aed572fa29f31e8b29635
SHA256 bec1a41f68b15bbb6d2d24036ebdc39d4ec3094169da09dd55e579a81ca77b36
CRC32 b3f6a065
Example file location C:\Windows\Help\mui\0409\
Filename devmgr.CHM
System Windows XP
File size 53709 bytes
Date 2008-04-14
File details
MD5 1005023e6a3382d501d247fb21df39bf
SHA1 24898934e5aa8cbb9ecd52b3c3a3774332b308b8
SHA256 7d2a1714916b8a1242ae3439d7fcc09a5086236087efcefca7cc21547ddd1611
CRC32 25c90c3f
Example file location C:\WINDOWS\Help\