Wednesday, May 29, 2024

How to enable or start Windows Defender manually

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Jillian Castillo
Jillian Castillo
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If you have installed a third-party antivirus, Windows Defender It will be turned off automatically. When you uninstall your antivirus and then restart, Windows Defender will automatically turn on and protect your Windows PC. But if you find that this is not the case, you will have to start Windows Defender manually. This article will show you how to manually enable or start Windows Defender on your Windows 10/8/7 PC.

How to start Windows Defender manually

To start Windows Defender, you need to open Control Panel and Settings in Windows Defender and click lit – litMake sure the following is enabled and set to On:

  1. Real-time protection
  2. Cloud-based protection.

We have already seen how to disable Windows Defender, now learn how to enable it.


When there is no security software protecting your computer, you will see notifications like these.

By clicking on it, you will see the security applications installed on your system. If you missed this notification, you can see it in the Notifications and Action Center.

Enable or start Windows Defender

By clicking on it, you will also see the security applications installed on your computer, as follows.

Activate or start Windows Defender 5

Choose Windows Defender Then click lit – lit button.

Windows Defender will start. The first thing to do when this happens is to update your definitions.

Click on the Settings link in the upper right corner to open the next panel. You can also access it via Settings > Update & Security > Windows Defender.

Unable to activate Windows Defender Windows 10

Once here, make sure Real-time protection And the Cloud-based protection It is set to On. You can also set files Automated form submission to playback mode. You can then configure Windows Defender as needed.

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Windows 8 and Windows 7 users can search for “Windows Defender” via Startup Search and do what is necessary.

If Windows Defender is not running, you may need to check the status of its services and components:

  1. Windows Defender could not be activated
  2. Windows Defender does not turn off even when a third-party antivirus is installed
  3. Windows Defender is disabled or not working.

Enable or start Windows Defender

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