Ok, macOS / Linux native here on Windows territory and a bit lost.

I'm helping a family friend upgrade to Windows 10. He has a company laptop that he was allowed to keep after his retirement. It had Windows 7 Pro on it. I upgraded it via Microsofts own Upgrade application and it worked great. All files/folders still in place and all applications working smoothly, except for the Windows (Defender) Firewall:

  • When I look at the firewall setting in the renewed settings menu it is set to "off" and the button is greyed out.
  • In the configuration screen -> firewall settings there is an exclamation mark with a warning message that the firewall isn't set to it's default settings. There is also a button to restore the default setting but pressing it throws an errorcode 0x80070437

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  • Within the Windows 10 settings app there is also a firewall status screen that shows:

enter image description here

  • I tried logging into the administrator account to press the same button but same error persists.
  • I downloaded & ran the "Windows Firewall Troubleshooter" program but it also failed to solve the problems. In the detailed report it read:

"Windows could not start the Windows Firewall on Local Computer"

  • I tried running services.msc and starting the Windows Defender Firewall service from there but it keeps shutting itself down directly after it starts.
  • Finally I tried restting the service via CommandPrompt (run as Administrator) using the command Netsh advfirewall reset but it returns:

enter image description here


By advice of @harrymc I also tried the solution offered here which boils down to giving the “NT Service\MpsSvc” account adequate permissions, but the errors still persist..

I am left without a clue as to what I can do to further diagnose the problem?

  • Check the procedure in this answer and if the described permission is there, if not add it. If this is still not enough, do it also for registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp. – harrymc Oct 17 '18 at 8:42
  • @harrymc Thnx, will do! Will report back findings. – Montmons Oct 17 '18 at 9:29
  • @harrymc - Unfortunately it did not work, I edited my Question to include this failed attempt as well as adding in some screenshots. – Montmons Oct 21 '18 at 11:07
  • Have a look at this article for resetting Windows Defender settings to the default. – harrymc Oct 21 '18 at 11:11
  • @harrymc - Yes, I saw that article before, I believe I tried all methods. I am sure of the first 3, all failed. I am doubting now about the 4th, the powershell attempt. Will retry that during my next attempt and report back. – Montmons Oct 21 '18 at 11:19

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