Automatically diagnose and fix problems with Windows Firewall

Gjelder: Windows 10Windows 8.1Windows 7

Follow these steps to automatically repair Windows Firewall problems:
  • Select the Download button on this page.
  • In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Firewall Troubleshooter.

What it fixes

  • Windows Firewall isn’t the default firewall
  • Windows Firewall doesn't start 
  • Windows couldn’t start Windows Firewall (Service-specific error 5 (0x5))
  • Remote Assistance isn’t working because it’s blocked by Windows Firewall
  • You’re unable to access shared files and printers because sharing is blocked by Windows Firewall
  • BFE service is missing
  • Firewall won’t start (Error Code 80070424)

Runs on

  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10