Windows 11 Windows Security not working

Anonymous

Hello. A few days after doing a local file factory reset on my windows 11 pro computer, I found out that my windows security is not working.

Issues:
-When I enter Virus and Threat protection I get a message saying "Page not found. Your IT has limited access to some areas of this app, and the item you tried to access is not available. Contact IT helpdesk for more information."
-when I open Windows Security, its just a blank page, although it says "Actions Recommended" on the privacy & Security>Windows Security place

-when I go to C:\Windows\System32\SecurityHealth I see that I have a folder named 1.0.2401.13001-0 . But I don't have the securityhealthsetup thing.
-I also tried to download the securityhealthsetup file and tried to move it to the security health folder, but I simply get "You need permission to perform this action"
then I also tried to run it as administrator on desktop but It did not do anything, although the command prompt appeared for a few seconds before disappearing.

-Also when I access the properties to the securityHealth folder, and I go Security>Edit, I cannot give full control to anything, nor change permission on anything
-I tried switching Light mode to dark mode and back to light mode but nothing worked
-On the apps & Features section, I tried to repair, reset and terminate windows security, but nothing happened.
-Not sure if it helps but when i click something to run as administrator, whilst it does ask for permission on most apps, I don't get that blur around the window.
-Also not sure if its linked to the issue but I cant send screenshots here for some reason.
-Also on the Services app, when I click properties on the security center, and try to start, stop, pause or resume something, It wont click and I don't have access to that permission, nor can I change anything else.
-I do not use an alternative anti-virus
Overall, I do not know much about IT but I think the issue could be that even though my account is an administrator, I may have lost many permissions on my PC. And all of this did not happen before I factory rest my Pc locally whilst protecting personal files. Please help, thank you.

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18 answers

_AW_ 67,341 Reputation points Volunteer Moderator

2024-04-02T20:47:03+00:00
It seems Windows Defender and its related services are all working, it's just the Security Health GUI that's the problem.
- Type powershell into search then right click Windows Powershell and run as administrator.
- Run the first command below then check Windows Security GUI.
- If not working try the second command.
- Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage
- Get-AppXPackage *Microsoft.SecHealthUI* -AllUsers | % { Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" }
```
Download this setup file and right click run as administrator.

[https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2024/02/securityhealthsetup_e16941e14861a6d24750ecdf05c548189b33182a.exe](https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2024/02/securityhealthsetup_e16941e14861a6d24750ecdf05c548189b33182a.exe "catalog.s.download.windowsupdate.com")
```
If still not working, perform a repair installation which allows you to keep your apps and files.

Go to the third download option at the following link and download Windows 11 Disk Image (ISO) for x64 devices. Make sure you choose the correct language option that matches your current installation.

https://www.microsoft.com/software-download/windows11
- Double click to mount the ISO, or right click and select Mount.
- Double click on setup.exe
- Next click on Change how Setup downloads updates and select the option Not right now.
- If the option to Keep personal files and apps is greyed out, abort the installation.
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_AW_ 67,341 Reputation points Volunteer Moderator

2024-02-27T21:46:28+00:00
Download this build of SecurityHealthSetup and run as administrator:

https://catalog.update.microsoft.com/Search.aspx?q=KB5007651

If that doesn't fix it, type powershell into search then right click on Windows Powershell and run as administrator.

Copy/paste in the following command and press enter:
```
reg delete "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /f;Set-MpPreference -UILockdown 0;
```
Restart the computer.
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Anonymous

2024-03-01T04:43:35+00:00

Hi, Color HD

I see that volunteer moderator _AW_ has provided a way to modify the registry. May I ask if this solves your problem?

Best Regards

Martin | Microsoft Community Support Specialist
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Anonymous

2024-02-27T20:00:46+00:00

I tried everything there but nothing worked
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Anonymous

Hi, Color HD

Welcome to the Microsoft Community.

This is a known issue and there is already a workaround, you can refer to the workaround inside the link below to see if the issue can be resolved: 

[Windows security stuck on black screen after opening. - Microsoft Community](https://answers.microsoft.com/en-us/windows/forum/windows_11-security/windows-security-stuck-on-black-screen-after/347ae039-5439-405d-83e1-fbfabbe23712?messageId=c228b5db-db5e-4ad5-8e89-d63058834774 "answers.microsoft.com")

If there is anything not clear or I can't understand your problem, please do not hesitate to let me know.

Best Regards

Martin | Microsoft Community Support Specialist

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Windows 11 Windows Security not working

18 answers