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how do I stop windows defender?

Paul T. Reed, MSgt, USAF Retired 20 Reputation points
2025-07-15T11:10:15.7766667+00:00

I did not order Windows Defender. I need to stop it.

Windows for home | Windows 11 | Microsoft Store

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Thoura Sopheak Nanta 175 Reputation points
2025-07-15T11:40:41.37+00:00

Hi, Thank You for reaching out to Microsoft Q&A. Please note That Disabling Windows Defender potentially makes your Device vulnerable to external threats, such as malware, Viruses, and trojans. I cannot be held responsible for any loss or damage to your computer. Do this at your own risk. Steps to disable Windows Defender:

  • Open Windows Defender (Some Devices are Windows Security)
  • Go to Virus & Threat protection
  • Go to Virus & Threat protection settings by clicking the Manage settings
  • Disable Real-time Protection
  • Disable Dev Drive protection (If you have)
  • Disable Cloud-delivered Protection
  • Disable Automatic sample submission
  • Disable Tamper Protection.

NOTE: DISABLING VIRUS & THREAT PROTECTION MAKES YOUR COMPUTER VULNERABLE TO VIRUSES. FOR THAT REASON, Windows Security (Or Windows Defender) WILL AUTOMATICALLY TURN IT BACK ON, LEAVING IT TURNED OFF TEMPORARILY.

This is it. For disabling Windows Defender, I cannot be held responsible for any loss or damage to your device. Do this at your own risk.

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  1. Kapil Arya 37,796 Reputation points Volunteer Moderator
    2025-07-15T14:16:03.51+00:00

    Windows Defender comes pre-installed.

    It's a free antivirus program included with Windows 11.

    It helps to keep your system safe and secure.

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  2. DaveM121 884.5K Reputation points Independent Advisor
    2025-07-15T11:46:39.5333333+00:00

    Defender is the free built-in anti-virus in all versions of Windows, it should never be deactivated unless you install a 3rd party anti-virus, otherwise your PC would be open to being infected by malware.

    What problem are you experiencing with Windows Defender, please provide full details and a screenshot of any error you may be seeing.

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