When Windows Security displays blank pages, it is usually caused by system component exceptions or settings conflicts. 1. Check and uninstall third-party security software because it may block Windows Security; 2. Use the sfc /scannow and DISM command to repair system files; 3. Reset Windows Security apps through Settings; 4. Check whether the Microsoft Defender antivirus feature is disabled in Group Policy settings. Follow the above steps to check in turn, and the problem can be solved in most cases.

When Windows Security displays blank pages, it is usually caused by system component exceptions or settings conflicts. This situation occurs occasionally when using Windows 10 or Windows 11, especially after updates or third-party software interferes.

Here are some common solutions and troubleshooting ideas for your reference:

Check whether it is blocked by third-party security software

After many users install other antivirus or firewall software (such as Norton, Kaspersky, Avast, etc.), Windows Security, which comes with Windows, will be automatically disabled. At this time, when you open the Security Center, you will see a blank page or some functions will not be displayed.

You can try the following:

• Open Task Manager to see if there are third-party security software processes running.
• Go to "Control Panel" → "Programs and Features" to uninstall these third-party security software.
• After restarting the computer, open Windows Security again to see if it returns to normal.

Use the system file check tool to fix system errors

If the system critical files are corrupted, Windows Security may also fail to open or appear blank.

The following commands can be executed to fix it:

1. Open Command Prompt as administrator.
2. Enter and run:

    sfc /scannow

3. After the scan is completed, run again:

    DISM /Online /Cleanup-Image /RestoreHealth

These two commands can help you scan and repair system files. Restart the computer after completion and the problem is usually alleviated.

Reset Windows Security app

Sometimes there is something wrong with the app itself, and you can reset the Windows Security app through "Settings".

The operation steps are as follows:

• Open Settings → Apps → Installed Apps.
• Find "Windows Security" in the list.
• Click to enter the details and select "Advanced Options".
• Find the "Reset" button and click Confirm.

This method is suitable for application cache or configuration abnormalities and will not affect the overall security settings of the system.

Check Group Policy or Registry Settings (Advanced)

If you are using a computer in an enterprise environment, or have modified some system policies yourself, it is possible that Windows Security has been disabled through Group Policy.

Recommended inspection:

• Use gpedit.msc to open the local Group Policy Editor.
• Go to "Computer Configuration" → "Administrative Templates" → "Windows Components" → "Microsoft Defender Anti-virus".
• Check whether Turn off Microsoft Defender Antivirus is enabled.

If an individual user is not familiar with Group Policy operations, it is recommended to skip this step unless you are sure that you have adjusted the relevant settings.

Basically, these common causes and corresponding solutions. In most cases, the problem lies in third-party software interference or system file exceptions. Following the above method step by step, the problem should be solved.

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