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JianYu's avatar
JianYu
Brass Contributor
Sep 02, 2021
Solved

Windows 11's Windows Security App can't open.

Alright guys, just now I'm trying to disable the Windows defender but I found out that I can't even open the Windows Security App. Anyone knows what's going on? Any solution? I'm looking for help.  ...
  • Little_Joe's avatar
    Little_Joe
    Sep 02, 2021

    JianYu 


    Hello,

    Suggest try the following steps:

    • Open PowerShell by using Administrator rights
    • Copy and paste Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage to the PowerShell window and press enter
    • Close the PowerShell and retry
Little_Joe's avatar
Little_Joe
Bronze Contributor
Sep 02, 2021

JianYu 


Hello,

Suggest try the following steps:

  • Open PowerShell by using Administrator rights
  • Copy and paste Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage to the PowerShell window and press enter
  • Close the PowerShell and retry
  • davidpnuk's avatar
    davidpnuk
    Copper Contributor
    Sep 16, 2024
    I tried several times but nothing happened going back to windows 10 never had any problems but this windows 11 no end of bother it downloads updates for the antivirus on security center but all i get when i try to open windows security center is page unavailable and it says something about contacting IT administrator i have tried all these methods mentioned here and not got anywhere so its back to windows 10 had no problems there i dont know if its got anything to do with it being arm system i did a hard reset but that didnt fix it i was told by people 11 has bugs in it so i guess i have found one of them
  • mmagesh227's avatar
    mmagesh227
    Copper Contributor
    Sep 14, 2024

    Little_Joe 

    I tried but still its not working any other solution for this

  • C0N5UM3R's avatar
    C0N5UM3R
    Copper Contributor
    Dec 05, 2023

    Hey guys, so I have literally tried absolutely everything possible to search on how this issue can be fixed.

    I have unfortunately not had any luck with getting this fixed at all.

    is there anything else I can do.

     

    All the obvious things I have done already

  • _kido's avatar
    _kido
    Copper Contributor
    Oct 31, 2023

    Little_Joe 

    Thanks for your solution
    it's work

  • Caleb_Isaiah's avatar
    Caleb_Isaiah
    Copper Contributor
    Sep 20, 2023

    I have a similar problem but for me the windiws defender app opens but shiws a black screen I uninstalled my latest update and restarted tge pc but it still doesn't work I installed avast security which found some teojan that i deleted but the windows defender app is still thesame

    Little_Joe 

  • JimReid1945's avatar
    JimReid1945
    Copper Contributor
    Aug 18, 2023
    Did not work on my Windows 11 system.
  • TheRealHalle's avatar
    TheRealHalle
    Copper Contributor
    Jun 29, 2023

    Little_Joe  That did not work at all. Windows security app epens displays bluesheld in middle of app nothing else. Will not open all they way

  • Nouman0315's avatar
    Nouman0315
    Copper Contributor
    Jun 22, 2023
    I do it but it show error
  • Awwab007's avatar
    Awwab007
    Copper Contributor
    May 06, 2023

    It didn't helped me I have gone through the instruction then also it didn't worked . Do you have any other method Little_Joe 

    • Little_Joe's avatar
      Little_Joe
      Bronze Contributor
      May 09, 2023
      Depends on your current OS you may try to perform an In-place upgrade with a higher version of Windows that could fix this issue.

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