Sep 01 2021 09:34 PM
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.
Sep 01 2021 10:12 PM
Solution
Hello,
Suggest try the following steps:
Sep 01 2021 10:17 PM
Sep 17 2021 10:10 PM
Oct 13 2021 08:22 PM
Nov 04 2021 09:47 AM
@Little_Joe you're going to have to use the powershell.exe as an Administrator from C:\Windows\System32\WindowsPowerShell\v1.0 to get it to work at this point.
Nov 05 2021 01:21 PM
This fix worked for me as well. Thanks!
Dec 22 2021 07:49 AM
@JianYu this solution doesn't work for me
tried other solutions like Windows Security in Windows 11 not opening or working (thewindowsclub.com)
except for only reinstallation on my side. Do you have any other solution? I bit doubtful windows defender then install 3rd party internet security ie, Kaspersky
Dec 24 2021 07:26 PM
@karthikshaindia If this solution do not work for you, I think you can just follow the reinstall step based on the link you shared or maybe you can install 3rd party antivirus software like you said if you own a license key to activate the software 😊
Jan 23 2022 12:23 PM
Ran "Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage" in Windows PowerShell as Administrator and it worked!
Thank you!
Jan 23 2022 09:04 PM
Glad to know this.
Feb 11 2022 04:16 AM
@Little_Joe Thanks very much. I was pulling my hair out wondering why some apps were considered threats and not able to open the security app to allow them.
All good now!!!
Feb 13 2022 12:09 PM
Me too 😞 ,I've searched but all the results not able to fix !
Access is denied.At line:1 char:1+ Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ CategoryInfo : NotSpecified: (:) [Get-AppxPackage], UnauthorizedAccessException+ FullyQualifiedErrorId : System.UnauthorizedAccessException,Microsoft.Windows.Appx.PackageManager.Commands.GetAppxPackageCommand@wrsjj77
Feb 14 2022 02:39 AM
Feb 19 2022 04:42 PM
This worked like a charm, thanks for posting the information.
Sep 01 2021 10:12 PM
Solution
Hello,
Suggest try the following steps: