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Here's how to Fix Windows Security shows Unknown status in Windows.

Windows Security shows Unknown status means that the information from Windows Defender is not available. This can happen if you are using a third-party antivirus software, if your Windows Defender settings are corrupted, or if your PC is infected with viruses or malware. Here are some possible solutions you can try:

- **Update Windows**. Make sure you are using the latest version of Windows by checking for updates from Settings - Update & Security - Windows Update. This may help fix any bugs or glitches that cause the error.
- **Disable third-party antivirus software**. Check if you have any other antivirus software installed on your PC and disable it temporarily. This may help resolve any conflicts or interference with Windows Defender.
- **Restore/refresh the default services of Windows Defender**. This may help fix any corrupted or missing files that cause the error.
- **Delete the Windows Defender folder from the registry**. You can use this method to reinstall Windows Defender: Open the registry editor and go to Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender. Then delete the Windows Defender folder and restart your PC.
- **Scan your PC for viruses and malware**. You can use the Microsoft Malicious Software Removal Tool or another trusted tool to scan your PC for any viruses or malware that may affect Windows Security.