"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
    2022-05-30T06:43:01+00:00

    Thank you! Worked for me. (Repairing my file system didn't seem to be the fix, rather OP here is the fix).

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  2. Anonymous
    2022-05-30T14:18:32+00:00

    AMAZING!

    I was a bit sceptical about doing this since i dont know nothing about this and dont realy like to use command prompt or, in this case, powershell, but everithing went fine.

    Thank you so much!!

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  3. Anonymous
    2022-06-01T18:36:01+00:00

    This easy fix worked for me.

    1. Open PowerShell console as Administrator
    2. Run command: Add-AppxPackage -Register -DisableDevelopmentMode "C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\AppXManifest.xml"

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    2 people found this answer helpful.
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  4. Anonymous
    2022-06-02T13:19:48+00:00

    For anyone who, like me, was concerned that running this threw a bunch of errors because things like "Windows.BingWeather" have to be turned off, you can safely ignore them - this fix worked despite those.

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  5. Anonymous
    2022-06-02T13:47:14+00:00

    Same issue. Had to back everything up to cloud, create a new iso, reinstall Win 11 to fix it. Its the only way. Sorry. :(

    I like Windows 11, I just want it to work.

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