How to change Windows Defender’s max CPU usage during scans

How to change Windows Defender’s max CPU usage during scans

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Home windows Defender is Microsoft default and most strong line of protection in terms of a shopper’s cyber-protection. That is finished because of the safety intelligence definitions which it continuously updates.

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Nevertheless, these of you operating Home windows 10 on older PCs might discover that Home windows Defender‘s max CPU utilization for scans may be fairly excessive at occasions.

If that's the case, then understanding learn how to scale back the CPU utilization might enable you to in the long term.

How do I modify Home windows Defender’s max CPU utilization for scans?

1. Change Home windows Defender’s max CPU utilization utilizing PowerShell

  1. Open PowerShell with administrative rights
  2. Sort in or copy-paste the next command:
    • Get-MpPreference | choose ScanAvgCPULoadFactor
    • By doing this, you will show the present CPU utilization proportion restrict for Home windows Defender.
  3. To change the worth, sort in or copy-paste the next command:
    • Set-MpPreference -ScanAvgCPULoadFactor <proportion>

1. Change Windows Defender's max CPU usage using PowerShell

Maintain word that the worth of <proportion> must be between 5 and 100.

For those who set the share worth to zero, it'll take away the CPU restrict and permit Home windows Defender to make use of up even 100% of it. This isn't advisable as it might result in unresponsive apps, freezing and even overheating.

2. Change Home windows Defender’s max CPU utilization utilizing registries

  1. Press Win + R
  2. Sort in regedit.exe
    • This can open the Registry Editor
  3. Go to the next Registry key:
    • HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows DefenderScan
  4. Edit or make a brand new 32-bit DWORD worth AvgCPULoadFactor
  5. Change the worth knowledge editor to Decimal
  6. Set the worth knowledge to a worth of 5 to 100

If you wish to undo the change, merely delete the DWORD you created.

Change Windows Defender's max CPU usage using registries


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three. Change Home windows Defender’s max CPU utilization utilizing Group Coverage

  1. Press Win + R
  2. Sort in gpedit.msc
    • The Group Coverage Editor will open
  3. Go to Pc Configuration
  4. Go to Administrative Templates/Home windows Elements/Microsoft Defender Antivirus/Scan
  5. Double-click on the Specify the utmost proportion of CPU utilization throughout a scan coverage
  6. Allow it
  7. Enter the specified CPU restrict beneath Specify the utmost proportion of CPU utilization throughout a scan
  8. Choose Apply
  9. Click on OK

By following these steps, you possibly can handle the typical CPU utilization that your Home windows Defender makes use of up throughout scans.

Altering the worth has each execs and cons. Whereas larger values imply the scans will carry out higher, you gained’t have the ability to make use of the PC till it's full.

On the flip aspect, decrease values imply your scans will take a very long time, however you'll no less than have the ability to use your PC undisturbed.

Do you assume altering Home windows Defender‘s CPU utilization is beneficial? Tell us within the feedback part under.

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