"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. Ramesh 181.2K Reputation points Volunteer Moderator
    2022-07-13T03:11:52+00:00

    Hi,

    Can you post the screenshot of the previous command's output window?

    Also, post the output of this command:

    get-appxpackage *SecHealthUI* -allusers

    Regards,

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  2. Anonymous
    2022-07-13T13:55:48+00:00

    This worked after updating my pc to windows 11! Thank you so much!

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  3. Anonymous
    2022-07-13T17:30:20+00:00

    Hi Ramesh,

    The first query you suggested running on my Windows 11 machine did not provide an output. The second command, however, did:

    PS C:\WINDOWS\system32> add-appxpackage -disabledevelopmentmode -register ((Get-AppxPackage Microsoft.SecHealthUI -allusers).InstallLocation + '\AppxManifest.xml')

    PS C:\WINDOWS\system32> get-appxpackage *SecHealthUI* -allusers

    Name : Microsoft.Windows.SecHealthUI

    Publisher : CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

    Architecture : Neutral

    ResourceId :

    Version : 10.0.18362.449

    PackageFullName : Microsoft.Windows.SecHealthUI_10.0.18362.449_neutral__cw5n1h2txyewy

    InstallLocation :

    IsFramework : False

    PackageFamilyName : Microsoft.Windows.SecHealthUI_cw5n1h2txyewy

    PublisherId : cw5n1h2txyewy

    PackageUserInformation : {GUID [GUID]: Installed(pending removal), 

                         GUID [DOMAIN\Username]: Installed(pending removal)}

    IsResourcePackage : False

    IsBundle : False

    IsDevelopmentMode : False

    NonRemovable : True

    IsPartiallyStaged : False

    SignatureKind : System

    Status : Ok

    Name : Microsoft.Windows.SecHealthUI

    Publisher : CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

    Architecture : Neutral

    ResourceId :

    Version : 10.0.19041.1023

    PackageFullName : Microsoft.Windows.SecHealthUI_10.0.19041.1023_neutral__cw5n1h2txyewy

    InstallLocation :

    IsFramework : False

    PackageFamilyName : Microsoft.Windows.SecHealthUI_cw5n1h2txyewy

    PublisherId : cw5n1h2txyewy

    PackageUserInformation : {GUID [DOMAIN\Username]: Installed(pending removal)}

    IsResourcePackage : False

    IsBundle : False

    IsDevelopmentMode : False

    NonRemovable : True

    IsPartiallyStaged : False

    SignatureKind : System

    Status : Ok

    Name : Microsoft.Windows.SecHealthUI

    Publisher : CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

    Architecture : Neutral

    ResourceId :

    Version : 10.0.19041.1682

    PackageFullName : Microsoft.Windows.SecHealthUI_10.0.19041.1682_neutral__cw5n1h2txyewy

    InstallLocation :

    IsFramework : False

    PackageFamilyName : Microsoft.Windows.SecHealthUI_cw5n1h2txyewy

    PublisherId : cw5n1h2txyewy

    PackageUserInformation : {GUID [GUID]: Staged}

    IsResourcePackage : False

    IsBundle : False

    IsDevelopmentMode : False

    NonRemovable : True

    IsPartiallyStaged : False

    SignatureKind : System

    Status : Ok

    Name : Microsoft.SecHealthUI

    Publisher : CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

    Architecture : Neutral

    ResourceId :

    Version : 1000.22000.1.0

    PackageFullName : Microsoft.SecHealthUI_1000.22000.1.0_neutral__8wekyb3d8bbwe

    InstallLocation : C:\Program Files\WindowsApps\Microsoft.SecHealthUI_1000.22000.1.0_neutral__8wekyb3d8bbwe

    IsFramework : False

    PackageFamilyName : Microsoft.SecHealthUI_8wekyb3d8bbwe

    PublisherId : 8wekyb3d8bbwe

    PackageUserInformation : {GUID [DOMAIN\Username]: Installed}

    IsResourcePackage : False

    IsBundle : False

    IsDevelopmentMode : False

    NonRemovable : True

    Dependencies : {Microsoft.VCLibs.140.00_14.0.30704.0_x64__8wekyb3d8bbwe, Microsoft.UI.Xaml.2.4_2.42007.9001.0_x64__8wekyb3d8bbwe}

    IsPartiallyStaged : False

    SignatureKind : Store

    Status : Ok

    PS C:\WINDOWS\system32>

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  4. Ramesh 181.2K Reputation points Volunteer Moderator
    2022-07-13T17:52:01+00:00

    Hi,

    The package seems to be installed for one of the users (don't know which one). Can you try the following command now:

    Add-AppxPackage -Register -DisableDevelopmentMode "C:\Program Files\WindowsApps\Microsoft.SecHealthUI_1000.22000.1.0_neutral__8wekyb3d8bbwe\AppXManifest.xml"

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  5. Anonymous
    2022-07-13T18:40:56+00:00

    Hi Ramesh,

    Sadly, I don't have access, even with my elevated credentials, to view the contents of the C:\Program Files\WindowsApps folder, but I can confirm that I am still receiving the original error when attempting to open the Windows Security dashboard: "You'll need a new app to open this windowsdefender link".

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