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Limit Windows Defender CPU Usage in Windows 10

by Ishaq Dar
Limit Windows Defender CPU Usage in Windows 10

Talking facts & figures of Windows 10, one can never hate this operating system. Becasue every single product, Microsft has produced in this OS, all of them are beneficial. Though, if you are a user of Windows 10, you know that I’m buttering. But you know, every machine has an error in it. So the beauty of Windows 10 is that if you are facing an error, you can remove the error by yourself with much of a hassle.

Likewise, I discovered trouble with Windows Defender CPU Usage in my Windows 10 Laptop. While I was using Windows Defender for scanning viruses & bugs from my Windows PC, my device kept responding laggy and didn’t work as it is supposed to do so. So here, I’ll share a way to help you Limit Windows Defender CPU Usage in Windows 10. Don’t worry, I know some tasks are not easy to perform, so I’ve drafted them in a simple manner.

How To Change Maximum CPU Usage for Windows Defender

The following are the basic & simple methods to Change/Limit Maximum CPU Usage for Windows Defender. Please do follow them as they are drafted for you. Don’t try to make customizations, because if do so, you may have to install all the Windows 10 files by yourself.

Using PowerShell

  • Type PowerShell in the Cortana bar and open the program with Administrative privileges.

Limit Windows Defender CPU Usage in Windows 10

  • Execute the following command in Windows PowerShell.
Get-MpPreference | select ScanAvgCPULoadFactor

Change Maximum CPU Usage for Windows Defender

  • Now to change/limit it, type the following command and press enter.
Set-MpPreference -ScanAvgCPULoadFactor <percentage>

You can type a percentage of 5 to 99 in the above command. Keep in mind that if you exceed or minimize the percentage, your OS will give all the processing speed to Windows Defender.

Using Windows Registry Editor

  • Press Windows + R button, to open run dialogue.
  • Type regedit in it and press enter.
  • Now go to the following path: HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows DefenderScan
  • Here create a new file of DWORD (32-bit) and name it as AvgCPULoadFactor
  • Right-click on the newly made key file and select Modify.
  • In the new windows change the HexaDecimal option to Decimal and enter a value from 5 to 99.

Limit Windows Defender CPU Usage in Windows 10

Using Group Policy Editor

  • Open the Run Dialogue by pressing Windows + R button.
  • Type gpedit.msc the empty bar and press enter.
  • Expand Computer Configuration.
  • Now keep expanding until you reach the following file destination

Administrative Templates > Windows Components > Microsoft Defender Antivirus >Scan

  • Now double-click on the policy named Specify the maximum percentage of CPU utilization during a scan and enable it.
  • Enter your desired value counting for 5 to 99 and click once on the Apply button.

Change Maximum CPU Usage for Windows Defender

That’s all, keep visiting Windowsboy for further guides.

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