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Kudos1 Stats

Do I need to turn off Windows Defender Firewall?

I'm not sure if this is the right place to post this, but I'll do so anyway. Sorry to bother you guys so soon after my last post.

I was looking through my Windows Settings a few months ago (I don't remember when exactly) when I noticed something odd in the "Firewall & network protection" part of Windows Defender Security Centre. When I clicked on one of the network options it came up with this:

"Norton Security

Norton Security is installed as a firewall provider.

(Green check mark) No actions needed.

Open Norton Security (Link that opens Norton Security)

Windows Defender Firewall

Helps protect your device while on a network.

(Blue slider) On"

I checked again recently and, even after several Norton patches, it's still the same. This seemed strange as I thought Norton was meant to turn off Windows Defender. I checked and Norton's Smart Firewall was still running. I'm not too worried as I've heard Windows Firewall is meant to partially stay on to help with updates and according to Microsoft the firewall is compatible with third party software.

https://support.microsoft.com/en-gb/help/4028544/windows-10-turn-windows...

"You should always run Windows Defender Firewall even if you have another firewall turned on. Turning off Windows Defender Firewall might make your device (and your network, if you have one) more vulnerable to unauthorized access. "

I don't feel particularly comfortable turning off either firewall, Norton or Windows Defender. What should I do? Am I at risk?

Labels: Windows 10

Replies

Kudos0

Re: Do I need to turn off Windows Defender Firewall?

I haven't experienced any issues with Internet connection or anything like that, everything seems to be working fine across both Norton and Windows.

Accepted Solution
Kudos1 Stats

Re: Do I need to turn off Windows Defender Firewall?

The setting you are seeing may refer to the Windows Defender Firewall Service.  I may be wrong, and stand to be corrected. And as you have already read, the Windows Defender firewall service is required to allow Windows updates etc.

I just checked my Win 10 1803 system shows what you are seeing.

Another place to check the Firewall settings is in Control Panel.  On the same system, I just checked Control Panel - System and Security - Security and Maintenance. When I click on the View installed firewall apps link, it shows Norton Security ON, and Windows Firewall OFF.  So it does appear that the Norton installation does in fact disable the functionality of the Windows Firewall.



Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: Do I need to turn off Windows Defender Firewall?

I checked the control panel, it showed Windows Firewall as being off as you said. Thank you for another helpful solution!
Kudos1 Stats

Re: Do I need to turn off Windows Defender Firewall?

You are welcome. 

I still hope someone more knowledgeable can comment on why the Win 10 Settings page shows Defender's Firewall as on.

Things happen. Export/Backup your Norton Password Manager data.
Kudos3 Stats

Re: Do I need to turn off Windows Defender Firewall?

Microsoft states that third-party firewalls "programmatically disable only the parts of Windows Firewall with Advanced Security that need to be disabled for compatibility."  Insofar as Microsoft recommends leaving the Defender Firewall on in the Security Center settings, I would follow that advice.  It's a shame there is not more documentation on this.  Norton is managing the firewall operation, so let's assume that it and Windows know what they are doing.  In searching online, it looks like this situation is common to other third-party firewalls as well.

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