Antimalware Service Executable Consuming So Much CPU? Ways to Fix It

antimalware service executable process

The Antimalware Service Executable is a component of the Windows Defender that comes preinstalled on Windows 10. Its primary function is to scan files, connections, and related applications in real-time to protect the system against viruses.

Besides, it also regularly checks your PC for security updates. This can cause high CPU usage.

Run a Full Scan

Why is this happening if you’re using Windows 10 and experiencing high CPU usage? You’ve probably run diagnostics and done a restart to clear the RAM, but still, your system is acting strangely.

The leading cause of the issue is that the Windows Defender Antimalware Service Executable process uses a lot of CPU to scan your computer for threats. This is because the program offers real-time protection to your computer, which constantly scans files, connections, and other related applications in real-time. This can drain your computer’s resources, especially if you have a low-end CPU.

You can turn off real-time protection to stop this process from using so much CPU. This can help to fix the high CPU issue and improve your PC’s performance.

You also can run a full scan to see in case your computer has malware. You can use a lightweight and official antimalware way to do this.

Another possible purpose of the trouble is that your PC wishes to have up-to-date Windows drivers and files. These can cause many problems to your PC, such as excessive CPU and reminiscence utilization. Windows Update is one of the quality methods to update these drivers and documents.

Disable Real-Time Protection

Real-time safety, regularly referred to as on-get entry to scanning, is one of the important capabilities that antivirus and antispyware products offer. This protects in opposition to malicious items, including malware or spyware, downloaded and completed in actual time.

It identifies suspicious files and processes and prevents them from being executed in the computer’s active memory (CPU). This ensures that all data is thoroughly analyzed and scanned before being used or stored, avoiding potentially damaging attacks and malware.

Most antimalware software uses this feature to watch your system and prevent potential attacks or exploits. It also provides a second opinion, allowing your primary antivirus program to catch threats it has missed.

In Windows 10 and Windows 7, you could disable the real-time protection characteristic of Microsoft Defender the usage of some simple steps. Start with the aid of commencing the app, then click on the settings button beneath Virus & Threat Protection.

On the next page, go to the Manage Settings section and turn off the Real-time protection toggle switch. Once done, the antimalware service will stop consuming CPU resources, and your device will return to its average working speed.

If your antimalware service is still consuming CPU resources after you have disabled the real-time protection feature, you can use the Registry to remove it permanently. To do this, simultaneously press the Windows key + R and then type’regedit’ in the run dialogue box.

Disable Windows Defender

Windows Defender is a great tool to protect your computer against malware infections. It scans every file and software that enters your PC to ensure safety.

It additionally has an actual-time protection function that continuously examines brand-new threats within the historical past. This method continues scanning the whole lot you do and may cause many CPU and disk usage troubles.

One of the motives why this hassle occurs is because Windows Defender is greedy with regards to using CPU assets. The answer is to timetable the scans whilst you are least likely to word excessive CPU utilization.

You can try this in diverse ways, but putting in place a venture scheduler is the most obvious. To do that, open the Start menu and sort “undertaking scheduler.”

Next, select whilst you don’t note excessive CPU usage to your computer. Then, restart the laptop and spot if the CPU aid consumption decreases after it has completed its scans.

If the above methods don’t fix your problem, you could need to disable Windows Defender. However, it would help in case you bear in mind that disabling Windows Defender will leave you liable to many cyber-assaults. This is why it’s critical to have an excellent antivirus application hooked up in your PC before disabling Windows Defender.


You might have noticed that your computer is on foot very slowly otherwise you’re getting quite some noise from the enthusiasts. These are symptoms of high CPU, reminiscence, and disk utilization. If you need to restore it, there are some steps you may take.

First, you need to run a whole experiment together with your antivirus software program application. This will assist in removing any Threats in your device and resolving the problem.

If the trouble persists, try quickly disabling Microsoft Defender’s real-time protection to peer if that fixes excessive CPU usage. However, it’s crucial to examine whether this can reset Windows Defender’s default settings.

Another answer is to manually delete any files that might be inflicting excessive CPU consumption. This can be accomplished within the Registry, or you may use an information recuperation tool to retrieve your files from the hard force.

Once you’ve eliminated any strains of malware, restart your computer and open the Task Manager to peer if the Antimalware Service Executable high CPU utilization has gone down. If it has, preserve the subsequent technique to learn how to disable this method completely.

The antimalware provider executable is a crucial part of Windows that protects your PC from harmful applications. This carrier is meant to run inside the history, checking your computer for any malicious files or applications. It also updates your library and plays a complete scan if you run a machine test.