Download and Fix main.cpl

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

main.cpl file Mouse and Keyboard Control Panel Applets. 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 main.cpl related errors on your device. You can also download main.cpl file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP 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, Windows XP

File info

General information
Filename main.cpl
File extension CPL
Description Mouse and Keyboard Control Panel Applets
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 main.cpl file. main.cpl 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 main.cpl file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to main.cpl 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 main.cpl 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.

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

The last solution is to manually download and replace main.cpl 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 main.cpl file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of main.cpl 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: ---
  • Windows XP: ---

If the steps did not solve your main.cpl 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 main.cpl
System Windows 10
File size 630784 bytes
Date 2017-03-18
File details
MD5 878758b3a56f51084b83e95e30c8503e
SHA1 c7d9d020e7777d9cda2ada9e35907ae744b9a659
SHA256 95f3d9a857ae49d383b64d2a28c903ff9af17de47372a01b524fd22d3443ae18
CRC32 dd6cbd92
Example file location C:\Windows\System32\
Filename main.cpl
System Windows 8.1
File size 466944 bytes
Date 2014-11-21
File details
MD5 4087373a2d4ab8f0e3f6712cfe404764
SHA1 5746612ad03d1ad3ac460d88261f9fba089a944c
SHA256 0efc393cf2aaffe8e60763e01f9227901ea5244b9777373592e7d0a12d4d5ba0
CRC32 764ef6fd
Example file location C:\Windows\System32\
Filename main.cpl
System Windows 8
File size 467456 bytes
Date 2012-07-26
File details
MD5 2003432648dfa66c49138ca19f89396c
SHA1 f8595a8a1398210271a7557f4f41f9cc4bab6c7f
SHA256 7dda83a41d2549668a1adcbf90295c003d8e769d38441678ae0270c0015ba515
CRC32 d18d91dc
Example file location 1: C:\Windows\System32\
Filename main.cpl
System Windows 7
File size 497664 bytes
Date 2010-11-21
File details
MD5 6e90b7a6c66355aa8ddc5cabf6073de1
SHA1 1a5b64ba4a1c8ea17cf4f4c89e5f2a9e1dabc80d
SHA256 83367d7bd8498811aac5632842abb92742d50a45622968482477ebc133a47075
CRC32 cf035f5a
Example file location C:\Windows\System32\
Filename main.cpl
System Windows 7
File size 516096 bytes
Date -0001-11-30
File details
MD5 ba2b249cd7c8ce15e1a8d69ecaee5fa3
SHA1 36c176a2de8fb904a329b16e8ba994bd61be9ef0
SHA256 5405f1f3c0e9d772a056506367fa4f2ac9f98d445144c16da8f0c0ab6349104d
CRC32 1fb62a03
Example file location C:\Windows\System32\
Filename main.cpl
System Windows Vista
File size 493056 bytes
Date 2006-11-02
File details
MD5 c7bb9668daecf3ac00b9599cf0323652
SHA1 c3b44299405fc27ec64de41178e6512c8909720b
SHA256 024b72ef54a47393ce0a614f3dcf82e433f4e33596850a9098d491a831e8591e
CRC32 d75ed0ab
Example file location ---
Filename main.cpl
System Windows Vista
File size 484864 bytes
Date -0001-11-30
File details
MD5 ce7f6f3e9c107382a72f7d33b1e2c9fa
SHA1 a1b78b11eee7982c9791fc846139d8522849efa8
SHA256 7e2258fcb04d1c9c46c39dda8709010f7339ae1bf676ebb4a82eee283346e5d2
CRC32 14b1ce07
Example file location ---
Filename main.cpl
System Windows XP
File size 187904 bytes
Date 2008-04-14
File details
MD5 a739d74fad1f72a3b251ebac3480e4eb
SHA1 09bd615f51445dceec42a25ba13639ef91a0342e
SHA256 1f8fd4e1bb3870dced5cd52870db6e6846152a1c2c5102521bbbc1f1007d6192
CRC32 596433d6
Example file location ---