Fix pmc.CHM Errors

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

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

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

File info

General information
Filename pmc.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 pmc.CHM file. pmc.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 pmc.CHM file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to pmc.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 pmc.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of pmc.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\

If the steps did not solve your pmc.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 pmc.CHM
System Windows 8
File size 24419 bytes
Date 2012-07-26
File details
MD5 abfb5e26a844953917d64b02bde3c037
SHA1 71fdb2e71010457a1bcafcc3fb9581cd581014e0
SHA256 1d5df2e58ee04486eb61069a85bc5fbb7fa8a5f0d2995a06c4e352b3b3b1e5be
CRC32 13db064f
Example file location C:\Windows\Help\mui\0409\
Filename pmc.CHM
System Windows 7
File size 67841 bytes
Date -0001-11-30
File details
MD5 0df2f5d0d7e6305ea8df53547e208b90
SHA1 470e28ce2fab72685c183cd04362db7d79fa3b86
SHA256 e2cc32fa79a5afdec5473672e1f36953b7c26abf0be07bf6ea9e6fe8e71f8354
CRC32 8d6a78cf
Example file location C:\Windows\Help\mui\0409\
Filename pmc.CHM
System Windows Vista
File size 57355 bytes
Date -0001-11-30
File details
MD5 73a8432330dd8aaedef894186277fb16
SHA1 06e183ffb646cfd5511a534248e1364add45748c
SHA256 7bb1be0fe3c4a2218f11599045ef1e8517fa1e41bf5dbd36c7c6160ed3a3b2aa
CRC32 b09d09ef
Example file location C:\Windows\Help\mui\0409\