Support for Windows 10 will end in October 2025
After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11.
Note: The Microsoft Support Diagnostic Tool (MSDT) is deprecated and will be removed from future versions of Windows. For more information, see Deprecation of Microsoft Support Diagnostic Tool (MSDT) and MSDT Troubleshooters.
Follow these steps to automatically repair Windows Firewall problems in Windows 10.
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Select the Download button below.
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In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Firewall Troubleshooter.
Notes:
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This troubleshooter might be in English only. However, the automatic fix also works for versions of Windows in other languages.
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If you're not on the computer that has the problem, save the troubleshooter to a flash drive or a CD, and then run it on the computer that has the problem.
What it fixes
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Windows Firewall isn't the default firewall
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Windows Firewall doesn't start, such as due to Error Code 80070424.
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Windows couldn't start Windows Firewall (Service-specific error 5 (0x5))
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Remote Assistance isn't working because it's blocked by Windows Firewall
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You're unable to access shared files and printers because sharing is blocked by Windows Firewall
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BFE service is missing
