you'll need a new app to open this windowsdefender" error on server 2019

manuel pasquini 26 Reputation points

I still have this problem , tried all solutions suggested in post of TomW42 dated Jan,14th, 2019

any other idea ?

Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
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Accepted answer
  1. Dave Patrick 426.1K Reputation points MVP

    Any history here?

3 additional answers

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  1. manuel pasquini 26 Reputation points

    Good news !

    I tried again (power shell command) Add-AppxPackage -Register -DisableDevelopmentMode "C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\AppXManifest.xml"

    and this time worked :)

    thanks anyway for your support

    1 person found this answer helpful.

  2. Dave Patrick 426.1K Reputation points MVP

    Might try from PowerShell

    Install-WindowsFeature -Name Windows-Defender
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  3. manuel pasquini 26 Reputation points

    Hi Patrick, sorry for late reply.
    I have this situation in the server from a few months,
    No way to access Win Defender , every time I try I get the same answer .
    First I tried the solution suggested in the mentioned post : (power shell command) Add-AppxPackage -Register -DisableDevelopmentMode "C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\AppXManifest.xml"
    but no result.
    Later I tried to uninstalling Defender and reinstalling it (using power shell commands) but during uninstalling I received an error message and nothing changed .
    Any suggestions ?

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