Click this post from MiniTool to get solutions to fix the 0x6d9 error. If the Windows Firewall service is not running or if any of the services that Windows Firewall required are not running that is, BFE , this error message will appear. Here are 3 main reasons for the Windows Defender Firewall error Code 0x6d9. Sometimes, the issue appears because of the configuration of the Windows Defender Firewall. You have to reset the configuration to fix the error. Windows Firewall needs to run some services to work properly.
The Firewall will not work once the services are not running. If you want to turn Windows Firewall for Windows 10 on or off, this post will tell you all the steps and show you a great alternative to Windows Firewall.
First, you can try performing a System Restore. A System Restore will restore your operating system to a point in the past that can help you fix many issues.
What is a system restore point and how to create restore point Windows 10? This post will show you the answers. Here are the solutions to the 0x6d9 error.
Just now, I mentioned one of the reasons for the error is the Windows services not running. So you need to check whether these services are running or not. Here are the steps:. Step 2: Type services. Step 3: Then you need to search for Windows Defender Firewall and Base Filtering Engine one by one to check whether these services are running or not.
Additionally, you need to set their Startup type to Automatic. After restarting the service try to turn on the Windows Firewall by following the link. Hope this information is helpful. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. When trying to install software for new printer, HP n, I get the message "must have windows firewall on", then the message that it can't be turned on I have attempted everything can think of, how do I get this service restarted, even if only long enough to install all printer features?
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