MsMpEng.exe High CPU Usage On PC

It is possible that the MsMpEng.exe process on Windows 10 will cause your computer to become almost unusable. The fact that this process is part of Windows Defender does not rule out the chance that malware is responsible.

In order to prevent the built-in antivirus from checking your own files, you can change the settings. Installing a new, more dependable antivirus application may help you completely avoid this issue.


MsMpEng.exe How Do You Fix a Computer’s CPU Usage That’s Too High?

On Windows PCs, MsMpEng.exe might utilise a lot of CPU power, which can lead to other issues. There are a number of common issues that might arise during this treatment, and we’ll go through them all in this post.

What exactly does MsMpEng.exe do? Is there a virus on my computer? MsMpEng.exe is a fundamental process of Windows Defender. It isn’t a virus, but it isn’t a virus either.

If it finds anything suspicious, it will put the file in quarantine or delete it. In addition, it scans your computer for known worms and other infections.

Is MsMpEng.exe feasible to disable? Many Windows users have reported that MsMpEng.exe consumes a substantial amount of CPU and RAM, sometimes up to 80%, independent of the version of Windows they are using.

It’s possible that msmpeng.exe’s odd behaviour is due to a variety of circumstances. It’s possible that the programme is performing a directory scan on itself. Low hardware resources or outdated antivirus registry files could potentially be a contributing element in the problem. It’s possible that your PC is infected with malware.

Free and commercial antivirus programmes are available, and you can remove Windows Defender at any moment and install another. To avoid this, you should first attempt the fixes below to see if they help resolve the issue with msmpeng.exe.

We’ve heard from our clients that MsMpEng.exe utilises a lot of CPU and RAM, sometimes up to 80%, no matter what Windows version they’re running.

1. Windows Defender 

Step 1: Type Windows Security into the search field, and then pick Windows Security from the results list. From the drop-down box, select Virus and Threat Protection. Select Manage settings from the Virus and Threat Protection Settings menu in Step.

Add or remove exclusions by selecting it in the Exclusions section at the bottom of the page.

Step 2: Pick a name. Select Folder as the destination of the exclusion and add it. Select Windows Defender from the Program Files folder in C:Program Files. Select Exclude this folder from the drop-down box to verify.

Let us know how it works for you in the comments section below!

2. Limit The Amount of CPU Time 

Step 1: Right-click the Start button and select Task Manager from the drop-down menu.

Step 2: From the drop-down menu, select the Details tab. Right-click msmpeng.exe and select “Affinity” from the context menu. Decide which cores the process can use.

By following the steps outlined above, you can decrease the amount of processing power dedicated to the process, hence reducing the amount of CPU time spent on it.

3. Enter Safe Mode with Networking

Windows 10 compatible

Step 1: For starters, open the Settings app. Once you’ve done that, pick Recovery from the Update & Security menu. From the Advanced start menu, select Restart Now.

Step 2: Next, click Troubleshoot, followed by Advanced Options, Startup Settings, then Restart from the Choose an option screen.

Afterwards, you’ll be offered with a variety of options. F4 can be used to boot into Safe Mode.

Version 4.2 of Windows 7

Step 1: Restart your computer. You can do this by holding down the F8 key while your computer is restarting. When the Windows Advanced Options Menu appears, select Safe Mode with Networking and press Enter.

Using the procedures above, you can start your computer in Safe Mode if you’re still using Windows 7.

4. Remove Adware 

When searching for msmpeng.exe, it appears that the high CPU usage side effect is a widespread problem, and it could be a source of possibly destructive malware. Because adware can cause this issue, you should use specialised software to remove it.

MsMpEng.exe has been tainted in the past by viruses, spyware, and other forms of malicious software. The only way to be sure that your PC is free of malware and adware is to run a full scan with a trustworthy anti-malware and anti-adware programme.

You may expect the software to find and remove any annoyances from your computer in a matter of seconds. Keep a copy of all of your key documents, files, and photos on an external drive at all times. Certain infections can render your computer ineffective before or during the eradication process.

5. Schedule Windows Defender 

Step 1: Press the Windows Key + S to open the task scheduler. Select Task Scheduler from the results. When Task Scheduler launches, go to the left pane and select Task Scheduler Library > Windows Defender. Windows Defender Scheduled Scan can be found in the right pane by clicking on it.

Step 2: When the Properties box opens, click on the Conditions tab. If you want to start the task only while the computer is idle, on AC power, and if the following network connection is accessible at all times, make sure you switch off those options. When finished, click OK to save the changes you made.

Step 3: Go back to the Properties window and click on the Triggers tab, as in Step.  To get started, select the New option. Choosing Weekly or Monthly as the frequency of data collection is the final step. To save your changes, click OK when you’re finished.

Step 4: Go back to Task Scheduler and make the same changes to all of the Windows Defender tasks that you previously made. Cache Maintenance, Cleanup, and Verification are all that’s required for Windows Defender.

Windows Defender is sometimes to blame for high CPU usage and the appearance of MsMpEng.exe. Repeat the steps above to reschedule Windows Defender to fix this problem.

If you follow our instructions attentively, you should be able to accomplish this more difficult solution. Be aware that significant CPU utilisation will return when Windows Defender begins its inspection.

6. Group Policy Editor

Step 1: To begin, press Windows Key + R to open gpedit.msc. Press Enter if you’re using a keyboard shortcut.

Step 2: Group Policy Editor is presently being launched in preparation for Step 2. Be aware that this feature is only accessible in Windows Pro and Enterprise. Next, go to Administrative Templates, Windows Components and Windows Defender Antivirus under Computer Configuration in the left pane.

Step 3: Turn off Windows Defender Antivirus by double-clicking its right-side button. Finally, click Apply and OK to save your changes in the Properties window that displays.

Using the Group Policy Editor will not be possible if you have the home version of Windows. Installation is not time-sensitive. If you want to learn how to do it, this is a great resource.

7. Registry

Step 1: Press the Windows Key + R to open the Registry Editor. Press Enter if you’re using a keyboard shortcut. When the Registry Editor opens, navigate to the following location in the left pane:


Step 2: DisableAntiSpyware DWORD is located in the right pane of the right pane. DWORD (32-bit) Value can be created by right-clicking an empty space and selecting New > DWORD (32-bit) Value. Assign a name to the new DWORD by double-clicking on it and typing “DisableAntiSpyware.”

If your machine won’t start Group Policy Editor, try modifying the registry to see if that helps. To achieve this, follow the steps mentioned above. Just disabling Windows Defender may be all that’s needed to cure your MsMpEng.exe and high CPU utilisation issues.

To keep your computer safe, use an antivirus programme other than Windows Defender before turning off Windows Defender. Due to the changes, Windows Defender will be disabled, but this should be fixed soon.

Despite the fact that this is a useful practise, it might lead to problems. First, we must disable this feature as described above in order to fix the problem. After then, check to see if the problem has been resolved. Manage settings can be found in the Virus & Threat Protection Settings menu.


Please let us know how this problem was solved by following the instructions in this article. This is an antivirus issue and the ideal answer for you may be found on our list of the best PC antivirus programmes, which has an unlimited licence validity.