MsMpEng.exe - Repair Issues and Download

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

MsMpEng.exe file Windows Executable. 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 MsMpEng.exe related errors on your device. You can also download MsMpEng.exe file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download MsMpEng.exe

4.1 List of MsMpEng.exe file versions

File info

General information
Filename	MsMpEng.exe
File extension	EXE
Type	Executable Application
Description	Windows Executable

Software
Program	Windows 10
Software	Windows
Author	Microsoft
Software version	10

Details
File size	82488
Oldest file	2012-07-26
Latest file	2017-03-18

Most common MsMpEng.exe file related problems

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

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

MsMpEng.exe

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

Problems related to MsMpEng.exe 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 MsMpEng.exe 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.

How to fix MsMpEng.exe errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

MsMpEng.exe 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

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with MsMpEng.exe 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.

Installing relevant Microsoft Windows patches and updates may solve your problems related to MsMpEng.exe file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
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 MsMpEng.exe 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 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 MsMpEng.exe file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the MsMpEng.exe file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the MsMpEng.exe file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the MsMpEng.exe 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 MsMpEng.exe file

The last solution is to manually download and replace MsMpEng.exe 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 MsMpEng.exe file.

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

Windows 10: C:\Program Files\Windows Defender\
Windows 8.1: C:\Program Files\Windows Defender\
Windows 8: 1: C:\Program Files\Windows Defender\

If the steps did not solve your MsMpEng.exe 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 MsMpEng.exe

System Windows 10

File size 82488 bytes

Date -0001-11-30

Download

File details
	MD5	68c8a0ff9a41e33e0102db1e964b5c29
	SHA1	133b67dc16734ff49957437de6ef5925e5402a16
	SHA256	c194217fe02211f27d98d7e650b0f7997c812814ff48bae0bf39a7d7ff2f3c41
	CRC32	6fb44a88
	Example file location	C:\Program Files\Windows Defender\

Filename MsMpEng.exe

System Windows 8.1

File size 22224 bytes

Date -0001-11-30

Download

File details
	MD5	8cc83221870dd07144e63df594c391d9
	SHA1	3d409b39b8502fcd23335a878f2cbdaf6d721995
	SHA256	33bc14d231a4afaa18f06513766d5f69d8b88f1e697cd127d24fb4b72ad44c7a
	CRC32	1319df99
	Example file location	C:\Program Files\Windows Defender\

Filename MsMpEng.exe

System Windows 8

File size 13864 bytes

Date -0001-11-30

Download

File details
	MD5	36a695e1683671009c2fea38b5eb4cd4
	SHA1	2497c8cad4579f37b5d7c1f2d8e8a06049d8fce0
	SHA256	3542673e2e8eb310aa55d973da5923f65f6ad4311dea2fea8e50abc757659ed2
	CRC32	a8235916
	Example file location	1: C:\Program Files\Windows Defender\