VIRUS and threat protection is missing

Question

hi i got a problem please help me i don t have virus and threat options anymore and i wanna i checked i noticed that windows defender is missing no i don t have an antivirus in my pc help ,e thank you i have tried a lot of things but it does not work

Answer 1

The easy fix:

1. Open File Explorer and navigate to: C:\WINDOWS\System32\SecurityHealth
2. In the SecurityHealth folder, you should find SecurityHealthSetup.exe. Right click on this file, select Run as administrator.
   1. If the folder is empty, or if the existing file has no effect, you can download a copy from the Microsoft catalog here: https://catalog.s.download.windowsupdate.com/c/msdownload/update/software/defu/2024/02/securityhealthsetup_e16941e14861a6d24750ecdf05c548189b33182a.exe
   Just save the file to your desktop/downloads, right-click on the file SecurityHealthSetup.exe and choose "Run as administrator". The above setup file automatically creates the missing SecurityHealth platform folder named "1.0.2402.27001-0". You should see a couple of blank command line windows flash. After that finishes, reboot and see if you now have access.

Things to check if that does not work

Registry

1. Press Windows Key + R, type regedit, and press Enter.
2. Navigate to:
   • Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Virus and threat protection
3. Look for the UILockdown key:
   • If it exists, set its value to 0 or delete it.
     • If it does not exist, create a new DWORD (32-bit) Value named UILockdown and set it to 0.

Group Policy Editor

1. Press Windows Key + R, type gpedit.msc, and press Enter.
2. Navigate to:
   • Computer Configuration -> Administrative Templates -> Windows Components -> Windows Security -> Virus and Threat Protection
   1. Double-click on Hide the Virus and threat protection area and set it to Not Configured or Disabled.

Additional Checks

• Ensure no third-party antivirus software is installed that could conflict with Windows Defender.
• Run Windows Update to ensure your system is up to date.
• Use PowerShell to reset Windows Security settings:
  • Open PowerShell as an administrator and run:
    • Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

If none of that works

1. Try this more generalized fix for common issues. Open Command Prompt as an Administrator (type cmd.exe into your start menu search, right-click on "Command Prompt" and click "Run as Administrator") and run the following commands:

      Dism /Online /Cleanup-image /Restorehealth
      
      
      Sfc /Scannow
      
      
      regsvr32 jscript               
      
      
      regsvr32  vbscript
      
      PowerShell
      
      Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}