How to fix a blank Windows 10 security screen

Windows Security offers built-in protection for Windows systems to protect your computer and files at no additional cost. However, sometimes when you try to open the app you get a blank screen.

Windows Defender is usually affected due to the presence of another antivirus on your PC. Here we are discussing some troubleshooting steps to help you quickly fix this issue in Windows 10.

Why is Windows Security showing a blank screen?

As mentioned earlier, Windows security is usually affected if a third-party antivirus is installed on your PC. And when you uninstall an antivirus, it is important to use its removal tool to complete the job completely.

Related: Is Microsoft Defender The Best Antivirus For Your PC In 2021?

Windows Defender Antivirus service disabled or missing in services can also trigger this issue. In such cases, you may need to perform a repair upgrade to resolve the issue. Corruption of system files is another common cause of this problem and may require an upgrade, reset, or new installation to resolve the issue.

If you are having this problem, here is how to fix it and fix it permanently.

1. Restart the Windows Security Center service

restart Windows Security Center

Windows Security Center service is an essential aspect of the operating system. It detects and notifies users of pending updates and security issues like disabled antivirus etc. If the service is closed or configured to run manually, try restarting it to see if that helps.

To restart the Windows Security Center service:

  1. hurry Win + R to open To run.

  2. Type services.msc and click OKAY.

  3. In the Services window, scroll down and locate the Security center service.

  4. Check the status of the service. If it is not running, right click and select Restart.

  5. Close the services and check for any improvements.

2. Check for pending Windows updates

If a bug or issue causes Windows security to malfunction, check to see if a fix is ​​available in Windows Updates.

To check and download Windows updates:

  1. Go to Start> Settings> Windows Updates.

  2. Click on Check for updates

  3. Then download and install any pending updates.

  4. Restart your PC and check if the problem is resolved.

3. Check with your administrator

If you are using a work computer, the administrator may have blocked access to some Windows 10 settings. Check the Group Policy and registry entries to find and resolve any Windows security issues.

If available, try to perform an in-place upgrade to the latest available version. An upgrade from Windows 10 to 11 will reinstall the operating system without removing your apps and files.

4. Run the System File Checker

system file checker

Corrupted system files can prevent one or more features from working in Windows 10. The System File Checker tool deployed with the sfc / scannow command will scan all protected system files and replace the corrupted files with a new cached copy.

To run the System File Checker tool:

  1. Type cmd in the Windows search bar.

  2. Right click on the Command Prompt option and select Execute as administrator.

  3. In the Command Prompt window, type the following command and press Enter:

    sfc /scannow
  4. The verification process may take some time, so wait until it is 100% complete.

When the process is complete, you will receive one of the following messages:

  • Windows Resource Protection found no integrity violations—This means that the System File Checker did not find any issues with your system files.
  • Windows Resource Protection found corrupted files and successfully repaired them.

  • Windows Resource Protection found corrupted files but could not repair some.

  • Windows Resource Protection could not perform the requested potation—In this position, run the System File Checker in Safe Mode to resolve this error.

If the error is found and fixed, restart the computer and check if the Windows Security blank screen issue is resolved.

4. Check for the presence of a third-party antivirus

remove third-party antivirus

By design, Windows security will be disabled in the presence of third-party antivirus. However, this will not affect the functionality of Window Defender.

Some antivirus software like Malwarebytes allows you to turn off protection and exit the application. If not, you may need to uninstall your antivirus to see if that helps.

To check if you have installed third-party antivirus:

  1. hurry Win + R to open Run.,

  2. Type appwiz.cpl and click Okay to open the Control Panel.

  3. Browse the installed apps and look for any installed third-party antivirus.

Most antivirus companies offer a removal tool to completely remove the software from the user’s computer. Go to the official website of your antivirus company and download the tool. Run the installer and follow the onscreen instructions to remove your antivirus software.

windows 10 reset this pc

As a last resort, perform a reset to reinstall Windows 10 without affecting your personal files and folders. However, this will remove any third-party apps installed on your computer, so be sure to create a backup before resetting your PC.

To reset your PC:

  1. Go to Start and open Settings.

  2. Open Update and security.

  3. Open the Recovery tab in the left pane.

  4. Scroll to Advanced start heading and click Restart now.

  5. Windows does not start in the Windows recovery environment.

  6. To select Repair then click on Reset this PC.

    Troubleshooting the Windows Recovery Environment

  7. Under Reset this PC, click on Keep my files. This option will reinstall Windows 10 while keeping your personal files. However, it will remove third-party apps and settings.

  8. Once your PC has restarted, select the user account and enter the password associated with your Microsoft account.

  9. Click on To continue proceed.

  10. In the How would you like to reinstall Windows? screen, select one of the following options: Cloud download: Requires fast internet connection and can use up to 4GB of data to download required Windows files. Local relocation: This allows you to reinstall Windows from your existing device. Select this option if you do not have a stable internet connection.

  11. Read the description displayed on the screen and click on the button. Reset button to confirm the action.

The reset process can take from a few minutes to a few hours. Leave your computer connected to a power source during the reset process.

In most cases, resetting the PC to factory settings should resolve Windows security issues showing blank screen issues in Windows 10 and Windows 11 systems. Otherwise, you will need to clean up Windows 10 installation / 11 with a bootable drive.

Fix Windows Security showing blank screen in Windows 10

Windows security showing blank screen issues can occur due to file corruption and is usually resolved with a repair install or upgrade to the latest version of the Windows operating system. Before that, try to troubleshoot the issues by restarting essential Windows Defender services and checking for third-party antivirus interference.

If resetting or reinstalling Windows 10 isn’t an option, consider using a dedicated third-party antivirus solution for your system as an alternative to Windows Defender.


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