3 Ways to Download & Install Windows Security on Windows 11

3 Ways to Download & Install Windows Security on Windows 11




  • Windows Security sometimes triggers unexpected errors, blocks some apps or it may break down due to a bug. 
  • Restarting your PC could help fix the issue sometimes, but if it doesn’t, you would need to use more troubleshooting techniques. 
  • Although the app is enabled by default in Windows 11, you may need to reinstall Windows Security to fix the problem. 

Windows security app not working on Windows 11

ESET Antivirus comes with all the security tools that you may ever need to protect your data and privacy, including :

  • Anti-theft support
  • Webcam protection
  • Intuitive setup and UI
  • Multi-platform support
  • Banking-level encryption
  • Low system requirements
  • Advanced anti-malware protection

An antivirus broadcast needs to be fast, effective, and cost-efficient, and this one has them all .

With Windows 11, you do not need to download & install Windows Security individually, since it comes built-in with the OS .
Windows Security is the suite that comes built-in with Windows. indeed, when you install Windows 11, it gets automatically installed. It proves to be one of the most effective security solutions by Microsoft .
It includes an antivirus plan called Microsoft Defender Antivirus which was known as Windows Defender Security Center in the older versions of Windows 10 .
The app does a well good job in most situations with real-time protection for your personal computer from virus and malware attacks .
however, the app is prone to issues, for model, it may fail to open or may not work sometimes when you try to launch the app .
You may want to check first if the Windows Defender app is turned off and if enabling it may help fix the issue .
But, if the Windows Security is distillery not working, in such cases, you may need to re-install the app on your Windows 11 personal computer .
Before we move over to the solutions, let ’ s understand how to download the Windows Security app on Windows 11 when it fails to open .

How do I get Windows Security on Windows 11?

In most cases, you merely need to enable the components of Windows Security back again from the Settings app to have access to it. here ’ s how to enable Windows Defender :

  1. Press the Win + I shortcut key combination to open Windows Settings.
  2. Click on Privacy & security on the left. select Privacy & security in Settings
  3. Next, on the right, click on Windows Security.click on Windows Security in Settings
  4. Now, click on Open Windows Security on the right. Click on Open Windows Security
  5. As the app opens, toggle through the security options on the right and enable Real-time protection.
  6. For example, click on Virus & threat protection. Click on virus & threat protection
  7. On the next screen, scroll down and click on Manage settings. Click on Manage settings under Virus & threat protection
  8. Now, go to Real-time protection and turn it on. Turn on real time protection

however, there are more window Defender components and so, you can access each of them to enable their features .
But, if the Windows Security app is missing from your Windows 11 personal computer, then you would need to reinstall it .
In the follow department, we have listed some of the solutions that may help you to download & install Windows Security on your Windows 11 device .

How do I reinstall Windows Security in Windows 11?

1. Use Windows PowerShell

1.1 Install the Windows Security app

  1. Right-click on the Start menu and select Windows Terminal (Admin). Open Windows Terminal (admin) through Start
  2. This will open Windows PowerShell in admin mode.
  3. Now, run the below commands one by one in the Terminal and hit Enter after each one: Set-ExecutionPolicy Unrestricted Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}run command to install windows defender
  4. Once you see the success message, close PowerShell and restart your PC.

This will disable the development mode for all the apps. now, try to open the Windows Security app and it should work normally .

1.2 Repair and Reinstall Windows Security

  1. Right-click on the Start button and select Windows Terminal (Admin) from the menu.
  2. Copy and paste the below command in the Terminal and hit Enter: Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackageRun command in powershell to repair and reinstall Windows Security
  3. Once the command is successfully executed and it generates the success message, exit the Terminal.

This will repair any issues for the site, when the app is installed, but not installed correctly. thus, helping you to reinstall the Windows Security app on Windows 11 .

2. Restart the related service

  1. Navigate to the Start menu, right-click on it and select Run. Right click on Start and select Run
  2. Type in services.msc in the Run console search box and press OK to open the Service Manager. Open service manager
  3. Go to the right side, and under the Names, column look for the Security Center service. restart security center to install Windows Security
  4. Right-click on the service and select Restart.

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Each time you boot your personal computer, the Security Center service starts running mechanically .
But if it fails to run at times, or gets disabled for some reason, you will be unable to open the Windows Security app on Windows 11 .
once you are done restarting the overhaul, check if you can open the Windows Security app now .

3. Turn on AntiSpyware from the Registry

Note icon
Before you proceed to make any changes to the register editor, make certain you create a stand-in of the register settings. This will help you recover any data that may be lost during the march.

  1. Right-click on the Start icon and select Run to open the Run console.
  2. In the search bar, type regedit and hit Enter to open Registry Editor.Type regedit to open registry editor
  3. Now, navigate to the below path in the Registry Editor: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender
  4. Next, go to the right side and double-click on DisableAntiSpyware. double click to open DisableAntiSpyware in the Registry Editor
  5. If the DisableAntiSpyware is not available, then right-click on a blank space, select New, and then select DWORD (32-bit) Value. Create new DWORD value
  6. Rename the new DWORD Value as DisableAntiSpyware. Double-click to open it. how to install Windows Security
  7. Now, the Edit DWORD (32-bit) Value will pop up. Here, set the Value data to 0. download and reinstall windows security
  8. Press OK to save the changes.

now, close Registry Editor and restart your personal computer. The Windows Security app should work now .
sometimes, changes to the register settings can turn off the Windows Security components. These could be accidental changes either by the exploiter or by a third-party lotion on your personal computer .
For more solutions on how to install Windows Security on Windows 11, you can follow our detailed usher on Windows 11 ’ south Security center not opening .
Besides, if you have a 3rd party antivirus software installed and running on your system, you can temporarily disable it, to stop it from interfering .
You can now check if you can open the Windows security app on your Windows 11 personal computer .

Why is Windows Security not working on Windows 11?

The Windows Security app not open is a coarse return, specially with the Windows 11 Insider builds. You would normally notice this issue after a Windows OS upgrade or randomly .
You may refer to our detail guide on early Windows Security issues. While it ’ s a Windows 10 usher, it works on Windows 11 besides .
You may find that the Windows Security app is not installed on Windows 11, when :

  • System files are corrupted
  • Related services are not running
  • There’s is interference from a 3rd party antivirus
  • Windows updates are pending
  • System settings are altered due to an internal glitch
  • The registry settings are modified

In most cases, the Windows Security not working in Windows 11 exit pops up on the latest human body. so, if you have recently upgraded to Windows 11, you may encounter this issue .
You can just follow the above methods or refer to our lead on Windows security not installed on Windows 11 for more solutions .
If Windows Security is inactive not opening on your Windows 11 personal computer, you can leave your comments below in the comments box and we may come up with a workaround .
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