How do I fix Windows Defender unexpected error?

How do I fix Windows Defender unexpected error?

1. Restart your computer: Sometimes, the error is temporary and can be fixed by simply restarting your computer. This action helps reset any temporary glitches and conflicts that may be causing the error.

2. Update Windows: Microsoft regularly releases updates for Windows Defender to fix bugs and enhance its performance. Ensure that your operating system is up to date by visiting the Windows Update section in the Settings menu.

3. Run Windows Defender troubleshooter: Windows provides a built-in troubleshooter that can help identify and fix issues with Windows Defender. To access this tool, go to the Settings menu, select Update & Security, and then Troubleshoot. Look for Windows Defender in the list and run the troubleshooter.

4. Scan for malware: Certain types of malware can interfere with the proper functioning of Windows Defender. Use a reliable and up-to-date antivirus software to perform a full system scan. If any malware is detected, remove it and then check if the issue is resolved.

5. Disable conflicting software: Sometimes, other security software or firewall applications can conflict with Windows Defender, leading to unexpected errors. Temporarily disable any third-party antivirus or firewall software. If the error no longer occurs, contact the software's vendor for assistance in configuring it to work alongside Windows Defender.

6. Perform a clean boot: Clean booting your system allows you to start Windows with only essential programs and services, eliminating potential conflicts that may cause errors. Follow the steps outlined in Microsoft's official documentation to perform a clean boot on your Windows version.

7. Reset Windows Defender: If none of the above methods work, you can try resetting Windows Defender. Open the Command Prompt as an administrator and enter the command ""%ProgramFiles%\Windows Defender\MpCmdRun.exe" -resetplatform" to reset Windows Defender to its default settings.

Conclusion: Windows Defender is a critical tool for ensuring the security of your computer. When faced with an unexpected error, it is imperative to take immediate action to rectify the issue and prevent any potential security threats. By following the steps mentioned above, you should be able to resolve the Windows Defender unexpected error and restore the smooth functioning of your computer's security system.

Note: If the error persists or you are unsure about making certain changes, it is always recommended to seek assistance from a technical expert or Microsoft support.

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