Normally, this isn’t really a problem because MRT only runs every once in a while. The problem lies when MRT begins to run for an extended period of time; even days on end. Now, something’s wrong.

What causes MRT.exe to malfunction and use a lot of the CPU?

Besides high CPU usage, other notable symptoms include your computer becoming really hot and scanning errors. To understand why this happens, it’s important to look at the likely culprits.

Your computer is infected with malware or a computer virus: This is by far the most likely reason. You may even have malware masquerading as MRT.exe. Use an antivirus app to clean this up. Some kind of software was incorrectly installed: Bad installations can cause app problems because important files are not located where they should be. Something in your system is corrupted: As a result of a bad installation, files can get corrupted interrupting key functions. We recommend repairing and restoring these corrupt files.

How can I stop MRT.exe from using CPU resources?

In order to stop the Malicious Software Removal Tool from malfunctioning, you need to first figure out what’s wrong with it. You can do this by checking the software’s logs. Before you delve into your computer’s files, there are a couple of quick solutions we recommend you try out:

Open the Task Manager and attempt to end the Malicious Software Removal Tool task in the window. If Task Manager doesn’t close it, we recommend using the Taskkill command. Run a full virus scan with Windows Defender if you have a Windows 10 or 11 machine. Malware may have infected your computer. Or if you prefer, you can use third-party antivirus software. What’s important is that you clean up your computer.

1. Check MRT logs

If it says no infection was found, there’s nothing else you can do. The problem lies elsewhere. If it does say something was found, proceed to the next solution. SPONSORED

2. Delete and reinstall MRT.exe.

3. Use Autoruns to clear up errors

The Component-Based Servicing (CBS for short) log file has been reported to become suddenly corrupt after a Windows update. It is pretty important since it keeps track of whenever new updates are installed. However, you can clean it up or outright delete CBS without causing harm to your computer. You should also learn about fixing Error 0x800f091f. The name may be awkward, however, it’s a serious issue. This error prevents the dotNet Framework from updating your Windows computer. Running an SFC scan can fix this, but you might also have to update drivers manually. Feel free to comment below if you have questions about other native Windows software. And please tell us if there’s a specific guide for any Windows error you’d like to see.

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