What does the MsMpEng.exe file do?
The MsMpEng.exe process is also known as Antimalware Service Executable and is a part of Microsoft Windows Operating System or, as the case may be, Microsoft Malware Protection. This software is produced by Microsoft (www.microsoft.com) or, as the case may be, Deployd. An outdated or faulty version of MsMpEng.exe can cause problems for your computer, ranging from slowness to error messages like these:
- Antimalware service Executable has stopped working. Windows is checking for a solution to the problem... (Windows 11, 10, 7)
- Antimalware service Executable has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 11, 10, 7)
- MsMpEng.exe has encountered a problem and needs to close.
- Access violation at address FFFFFFFF in module MsMpEng.exe. Read of address 00000000.
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What you should know about MsMpEng.exe Antimalware service Executable
MsMpEng.exe is not part of Windows, but it is important nonetheless. MsMpEng.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 103,168 bytes (16% of all these files), 103,376 bytes as well as 88 other variants.
It is the service "WinDefend".
This process does not have a visible window, and does not appear on the taskbar. The original file has a digital certificate (see its file properties). The MsMpEng file does not come from Microsoft and is not part of the operating system.
For this reason, 36% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves MsMpEng.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.
What do other computer users say about MsMpEng?
| Safe, STM should update Tom | |
| MS spyware program, not dangerous, but useless Terry | |
| Windows defender file Anthony Colley | |
| Windows Defender | |
| It is microsoft windows defender, free to download to Mike |
Summary: 94 users consider MsMpEng.exe essential and should not be removed. 9 users consider it harmless. However, 9 users consider this to be a suspicious process and would like to get rid of it. For this reason, 20 users have already removed MsMpEng.exe. source: file.net
How to uninstall the program or Microsoft Malware Protection
To remove Antimalware service Executable from your computer, please follow the manual instructions below.
- Click the Windows Start Button. You can find it in the lower-left corner of the taskbar.
- Type 'uninstall'.
- Click Add or remove programs.
- Now locate the program or Microsoft Malware Protection in the list of displayed applications.
- Click the program, and then click Uninstall.
How to check if MsMpEng.exe (Antimalware service Executable) was uninstalled completely
After uninstalling, restart your computer. Then open Windows Explorer and check if a folder with the software name still exists under C:\Program Files. Also, check the Registry for remnants of Antimalware service Executable. To do this, start Regedit, then look under HKEY_LOCAL_MACHINE > Software for: Antimalware service Executable or the name of the producer. Keep in mind that only a computer professional should delete entries in the Windows Registry directly.
Last but not least
If Windows is not working properly, startup is slow, or MsMpEng.exe is causing problems, a good Windows diagnostic tool may help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.
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