How to Fix Unknown Msmpeng.exe Error?

General Information of Msmpeng.exe

Msmpeng.exe is a core process that belongs to Windows Defender, the anti-spyware product from Microsoft. The primary functions of Windows Defender which utilizes the features of this process are removal, prevention and quarantine of spyware. It commonly locates in C:\Program Files folder or in the subfolder of C:\, and it occupies only little amount of disk space in Windows. However, once this process gets infected by virus or has been maliciously changed, it will become bloated and consumes huge amount of resource and memory space. And it may be found somewhere else in the disk or multiple processes with this process name will appear on Task Manager. It’s suggested to get rid of the infection immediately for proper running of Msmpeng.exe and correct operation of the whole system.

Msmpeng.exe Error Message

Your computer is low on memory. Save your files and close these programs: Borderlands. Windows will only close enough programs to restore needed memory.

The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance.

E:\WINDOWS\system32\config is not accessible. The file or directory is corrupted and unreadable.

What Trigger Msmpeng.exe Error?

Lack of full time security protection

Failure to update system to the newest status

Computer is infected with malware or virus

Removal of necessary system components

Its related files or modules have been corrupt or damaged

Improper shutdown or booting method of system

The Consequences Caused by Msmpeng.exe Error

This process consumes 100% of CPU resource and massive memory usage.

This error causes conflict among process, application and service.

This process reconfigures the scheduled activities and modifies registry setting without users’ permission.

Your computer slows down while playing games and you have to wait forever to connect to Internet.

It keeps loading this process onto system, which turns out to be false files using the same file name to execute malicious task.

How to Solve Msmpeng.exe Error Swiftly?

Step1 Remove Directory for Scanning

If you want to keep using Windows Defender, then your only way to fix Msmpeng.exe issue is to prevent the Windows Defender directory from being scanned.

1. Open Windows Defender, click on Tools and then Options. Scroll down to the Advanced Options section:

2. Now click on the Add button under the “Do not scan these files or locations” section. Type in the path for the Windows Defender directory: c:\program files\windows defender.

3. Click OK and make sure to click the Save button.

Step2 Disable Windows Defender

1. To turn off Windows Defender, open the program and click on Options.

2. Go to Administrator options and uncheck the Use Windows Defender box.

3. Now click Save.

Step3 Repair Windows Registry

Windows Registry is a critical part of computer which stores all the information of Windows configurations, settings and third party program information. The parameters stored in registry directly control the startup of Windows, loading of hard drivers and the operation of other routines. Since its key status in Windows system, any damage to or removal of registry component may trigger devastating problems like blue screen of death, obscure system shutdown and malfunction of applications. To protectcomputer from Msmpeng.exe error, you should firstly fix Windows registry problem.

Mass of registry problems can be solved with the help of a powerful registry fixing tool. A rewarding registry product may help fix any registry problems by removing unnecessary registry entries, repairing damaged registry key and back up important registry data for application usage. How to efficiently get rid of Msmpeng.exe error and dispel Windows registry problems?