Windows 10: Defender Firewall reverts all changes made to it

Windows Defender Firewall is blocking an app from connecting over my network and I am unable to get the necessary changes made to Defender to stay. When I use "Allow an app or feature through Windows Defender Firewall" and make any changes to the allowed apps, they go through but within 20 seconds revert back to what they were at. I cannot permanently add or remove a program from this list, I cannot even change any of the check marks without them soon reverting. Similarly I cannot permanently change any of the rules in the advanced settings area, or even change the notifications. Everything reverts within 20 seconds.


Disabling Defender allows the app I'm using to connect through my network, so fixing defender must be accomplished.



Other information:

•Windows 10 Home

•Windows is fully up to date

•I've tried restoring defaults to Defender

•Turning Defender off also reverts to on within 20 seconds.


Thanks for your time,
Matthew

:)

 

Windows Defender Firewall error code 0x800706d9

Hi AnudieKatz.

Thank you for writing to Microsoft Community Forums.

Since you are facing an issue with the Windows Defender firewall, I would like to ask you few questions to get a better picture.

1. Are you using any other Anti-virus software?
   
2. Since when are you facing this issue?
   
3. Have you tried installing Picture viewer and Calendar app after it getting uninstalled?
   

Based on your information, I would like to inform you that if you are using third party anti-virus program Windows defender will automatically turn off from your system you will not able turn it on manually.

Let’s try simple troubleshooting steps and check if this helps in resolving the issue. Follow the below methods.

Method 1: Check the following services and ensure it is started.

1. Press Windows and R key together on your Keyboard.
   
2. Type Services.msc and hit Enter.
   
3. Search for the following services:
   

• Base filtering engine Service
• Remote Procedure Call Service
• Windows defender firewall service

4. Start the above services and reboot the device.

Method 2: I would suggest you to try running the troubleshooter to enable the firewall. Use the below link to run the troubleshooter.

https://support.microsoft.com/en-us...agnose-and-fix-problems-with-windows-firewall

If you are still facing the same issue after following the above steps, revert with the details asked.


Hope it helps.

Mala.S

Microsoft Community - Moderator

 

windows defender firewall

Hi Faye,

Third-party antivirus programs usually have their own uninstallers provided by the software developer. We suggest checking the developer's website or contacting their support team for assistance with uninstalling their program. After fully uninstalling the
third-party antivirus software, you may turn on Windows Defender by following these steps:

• Click Start.
• Type Windows Defender Security Center and press Enter.
• Click Firewall and network protection.
• Click Private (discoverable) network and click On.
• Click Public (non-discoverable) network and click On.

Let us know if you have any other concerns about Windows Defender.

 

firewall

Hi Jackie,

For you to be able to get to your firewall, please follow the steps below:

• Go to start Button.
• Open Windows defender Security Center.
• Then go to Firewall & network protection.
• Then choose a network profile.

We'll look forward to your response.