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Why is my windows defender uninstalled? And how to reinstall it?

Anonymous
2023-02-18T08:16:13+00:00

Windows Security just crashes on opening and if i do actually open it it just shows noting.

Windows for home | Windows 10 | Settings

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Ramesh 176.8K Reputation points Volunteer Moderator
2023-02-20T12:40:56+00:00

Ok, what am I to do with that screenshot? It clearly says you didn't run a repair installation before posting this query.

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  1. John DeV 165.2K Reputation points Independent Advisor
    2023-02-18T08:47:30+00:00

    Hello Utkarsh,

    Good day! I'm John Dev a Windows user like you and I'll be happy to assist you today. I know this has been difficult for you, Rest assured, I'm going to do my best to help you.

    Please try to uninstall your third-party antivirus then perform the following methods below.

    **Re-register Windows Security and built-in apps via PowerShell

    Windows key+X then select Windows PowerShell (Admin)

    Copy and paste the command below then press Enter. Please ignore the red errors and let the process complete.

    Get-AppXPackage *Microsoft.Windows.SecHealthUI* -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

    Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

    Restart your computer

    **Please check Shawn Brink's tutorial guide in the link below on How to Enable Windows Security if it helps.

    https://www.tenforums.com/tutorials/110230-enab...

    Kindly let me know if this helps or if you have any further concerns.

    Kind regards,

    John DeV

    Independent Advisor

    Standard Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

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  2. Anonymous
    2023-02-19T13:20:05+00:00

    No help sir I guess some Malware uninstalled it. On startups I get the message that windows service center is turned off please turn it on but when i click on it it just says windows security centre can't be turned on. when i open the virus and threat protection it shows nothing

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  3. Anonymous
    2023-02-18T08:27:00+00:00

    I don't Have one

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  4. Anonymous
    2023-02-18T08:25:58+00:00

    If you have a third party security/AV they will generally disable Defender to prevent conflicts

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