"You'll need a new app to open this windowsdefender link" fix

Anonymous
2022-02-09T15:04:00+00:00

Hi this post is to help people with windows 10 and 11 windows security not working

On windows 11 do this

  1. launch powershell as an admin
  2. Set-ExecutionPolicy Unrestricted
  3. Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
  4. Set-ExecutionPolicy restricted

IGNORE THE ERRORS

on windows 10 do this

  1. launch powershell as an admin}
  2. run get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage
  3. if it doesn't work do this
    4) run Add-AppxPackage -Register -DisableDevelopmentMode "C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\AppXManifest.xml"
  4. run get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage
Windows for home | Windows 11 | Performance and system failures

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  1. Anonymous
    2023-08-26T04:05:48+00:00

    Reset-AppxPackage : The term 'Reset-AppxPackage' is not recognized as the name of a cmdlet, function, script file, or

    operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try

    again.

    At line:1 char:51

    • get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage 
    •                                               ~~~~~~~~~~~~~~~~~
      • CategoryInfo : ObjectNotFound: (Reset-AppxPackage:String) [], CommandNotFoundException
      • FullyQualifiedErrorId : CommandNotFoundException

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  2. Anonymous
    2023-04-01T07:26:42+00:00

    will this still work and will it be fine if I just don't turn execution policy to restricted?

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  3. Anonymous
    2022-07-16T15:53:55+00:00

    For Windows 11, this worked for me.

    Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

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  4. Anonymous
    2022-06-29T12:52:58+00:00

    Hi this post is to help people with windows 10 and 11 windows security not working

    On windows 11 do this

    1. launch powershell as an admin
    2. Set-ExecutionPolicy Unrestricted
    3. Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
    4. Set-ExecutionPolicy restricted

    IGNORE THE ERRORS

    on windows 10 do this

    1. launch powershell as an admin}
    2. run get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage
    3. if it doesn't work do this
      4) run Add-AppxPackage -Register -DisableDevelopmentMode "C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\AppXManifest.xml"
    4. run get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

    The Windows 11 fix worked for me, but ONLY when run by the user account that had the problem and first assigning that account to the Administrators group (and subsequently downgrading it back to Users). Other combinations ran (e.g. run by Administrator or by user before assigning as administrator) but failed to correct the problem.

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  5. Anonymous
    2022-06-17T21:54:38+00:00

    for windows 11 users:

    try this command :

    Add-AppxPackage -Register -DisableDevelopmentMode "C:\program files\windowsapps\Microsoft.SecHealthUI_1000.22621.1.0_x64__8wekyb3d8bbwe\appxmanifest.xml"

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