COMMAND.COM Troubleshoot and Download

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

COMMAND.COM file DOS Command. 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 COMMAND.COM related errors on your device. You can also download COMMAND.COM file compatible with Windows 10, Windows 8, Windows XP, Windows 8.1 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8, Windows XP, Windows 8.1

File info

General information
File extension COM
Type Executable Application
Description DOS Command
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 8960
Oldest file 2008-04-14
MIME type application/octet-stream

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

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



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


Problems related to COMMAND.COM 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 COMMAND.COM 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.

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

The last solution is to manually download and replace COMMAND.COM 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 COMMAND.COM file.

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

  • Windows 10: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows XP: C:\Windows\System32\
  • Windows 8.1: ---

If the steps did not solve your COMMAND.COM 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

System Windows 10
File size 8960 bytes
Date 2013-08-22
File details
MD5 9a355b75137e8a5f3c384c999cc6dbbc
SHA1 2be21636f3c2899f1217c289351b106118a5e197
SHA256 126a00e34a6516c0d382a221071ab4084031c2a89ccb6144cab960ce1f86ee2c
CRC32 2b4e36e7
Example file location C:\Windows\System32\
System Windows 8
File size 50648 bytes
Date 2012-07-25
File details
MD5 ba597f9a4bb90f038266ce1a3c3be3fb
SHA1 8ad4cc6d2dc92180ee6605fc3d205ed77716d490
SHA256 a5883b188b51aff06c54dabb56f6bdfec79e82f592466b0d9450b07166f989ab
CRC32 6d56470c
Example file location 1: C:\Windows\System32\
System Windows XP
File size 50620 bytes
Date 2008-04-14
File details
MD5 be67d29ca914de072d9971e3fffc4050
SHA1 3c57a09706d1791ef7cdbe65e62649e52c014e0f
SHA256 1a06fd74cead8820da111c42312a517aa239931f6bdc8c5fe8f586bc7e1a4ace
CRC32 6751750b
Example file location C:\Windows\System32\
System Windows 8.1
File size 8960 bytes
Date 2013-08-22
File details
MD5 9a355b75137e8a5f3c384c999cc6dbbc
SHA1 2be21636f3c2899f1217c289351b106118a5e197
SHA256 126a00e34a6516c0d382a221071ab4084031c2a89ccb6144cab960ce1f86ee2c
CRC32 2b4e36e7
Example file location ---