To reinstall Windows Security in Windows 11, you can follow a few steps using Windows PowerShell. Here’s a detailed guide on how to do it:
1. Install the Windows Security app:
– Open Windows PowerShell as an administrator. To do this, right-click on the Start button and select “Windows PowerShell (Admin).”
– In the PowerShell window, type the following command and press Enter: `Get-AppxPackage *WindowsDefender* | Remove-AppxPackage`
– This command will remove the Windows Security app from your system.
– Next, type the following command and press Enter: `Get-AppxPackage -AllUsers *WindowsDefender* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}`
– This command will reinstall the Windows Security app on your system.
2. Repair and reinstall Windows Security:
– If the above steps didn’t reinstall Windows Security or if it’s still not working properly, you can try repairing the app.
– Open Windows PowerShell as an administrator.
– Type the following command and press Enter: `Get-AppxPackage -AllUsers *WindowsDefender* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml” -ForceApplicationShutdown}`
– This command will repair the Windows Security app and force it to shut down any related processes.
3. Restart the related service:
– Sometimes, restarting the related service can help resolve issues with Windows Security.
– Open Windows PowerShell as an administrator.
– Type the following command and press Enter: `Get-Service -Name SecurityHealthService | Restart-Service`
– This command will restart the SecurityHealthService, which is responsible for Windows Security.
4. Turn on AntiSpyware from the Registry:
– If Windows Security is still not functioning properly, you can try enabling the AntiSpyware feature from the Registry.
– Press the Windows key + R to open the Run dialog box.
– Type “regedit” and press Enter to open the Registry Editor.
– In the Registry Editor, navigate to the following location: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender
– If the Windows Defender key doesn’t exist, you’ll need to create it. Right-click on the “Microsoft” key, select New, and then Key. Name the new key “Windows Defender.”
– Inside the Windows Defender key, right-click on an empty space, select New, and then DWORD (32-bit) Value. Name the new value “DisableAntiSpyware” and set its value to 0.
– Close the Registry Editor and restart your computer for the changes to take effect.
These steps should help you reinstall and resolve any issues with Windows Security in Windows 11. Remember to always exercise caution when making changes to the Registry, and it’s a good idea to create a backup before proceeding.