FIX: Unable to activate Windows Defender Firewall

Ivan Jenic
by Ivan Jenic
Troubleshooting Expert
Last update:
Affiliate Disclosure

  • It's a serious problem if you can't turn on your Windows Firewall, especially if you don't have an antivirus installed. What can you do? First, try to restart the Firewall Service.
  • If you still don't manage to make Windows Defender to work, you can still try a third party antivirus. Don't leave your computer exposed.
  • If you encounder more issues with the Windows Defender check the dedicated section for a solution.
  • We've covered Windows 10 errors extensively so please visit our Windows 10 errors hub for more.
How to fix Unable to activate Windows Defender Firewall
To fix various PC problems, we recommend DriverFix: This software will keep your drivers up and running, thus keeping you safe from common computer errors and hardware failure. Check all your drivers now in 3 easy steps:
  1. Download DriverFix (verified download file).
  2. Click Start Scan to find all problematic drivers.
  3. Click Update Drivers to get new versions and avoid system malfunctionings.
  • DriverFix has been downloaded by 0 readers this month.

Users complained that they’re unable to turn on Windows Firewall in Windows 10.

Since Windows Firewall is a very useful feature, especially if you don’t have any third-party antivirus software installed, this could be a serious problem.

So, we came up with a few solutions, in order to help you to solve the problem with Windows 10 Firewall.

Here are some more error codes and messages you may encounter on the way:

  • Windows could not start the Windows Firewall on local computer – This is one of the most common error messages you may encounter if you’re not able to run Windows Defender Firewall.
  • Windows Firewall error code 13 Error Code 13 is one of the most common error codes you’ll see if you can’t turn on Windows Defender Firewall.
  • Windows 10 Firewall error 1068 – Another common error code that prevents users from starting Windows Defender Firewall.
  • Windows 10 Firewall error 6801 – Although the error code 6801 is less common, you can encounter this code, as well.

Table of contents:

  1. Restart Firewall Service
  2. Perform a Registry Tweak
  3. Run the dedicated downloadable troubleshooter
  4. Reset Firewall settings
  5. Use Command Prompt to forcibly reset Windows Firewall
  6. Uninstall recent security-related updates
  7. Use Third-Party Antivirus

What can I do if I can’t turn on Windows Firewall in Windows 10?

1. Restart Firewall Service

The first thing we’re going to try is to restart the Firewall service.

If something disrupted the work of your Firewall, restarting the service will likely bring it back to normal. To restart the Windows Firewall service, do the following:

  1. Go to Search, type services.msc, and open Services
  2. Look for Windows Defender Firewall
  3. Right-click on it, and choose RestartWindows Firewall error code
  4. Wait until the process is finished
  5. Now, right-click on Windows Firewall, and go to Properties
  6. Make sure Startup type is set to Automatic

If restarting the Firewall service didn’t get the job done, we have a couple of more solutions. Check them below.

2. Perform a Registry Tweak

Microsoft is aware that users occasionally experience problems with Windows Firewall, so it provided a solution to this problem.

This solution is a registry tweak, and here’s exactly what you need to do:

  1. Go to Search, type regedit, and open Registry Editor
  2. Go to the following path:
    • HKEY_LOCAL_MACHINESYSTEMCurrentControlSetservicesBFE
  3. Right Click on BFE, and choose Permissions
  4. Click on ADD, and type Everyone
  5. Click OK
  6. Now, click on Everyone, and check Full Control, under Permissions for Everyone
  7. Restart your computer

We don’t have any info if this solution helped someone to solve the problem with Windows Firewall in Windows 10.

But it’s an official solution, provided by Microsoft, and not some basic steps from famous Engineers from Microsoft Community forums.

Can’t access Registry Editor? Check out this guide and solve the issue quickly.

3. Run the dedicated downloadable troubleshooter

Even though this problem emerged recently for Windows 10 users, it plagued users for years on former Windows iterations, as well.

For that purpose, folks from Microsoft decided to, in order to avoid in-depth troubleshooting for common users, offer a unified downloadable troubleshooter.

This tool did good work on Vista and Windows 7 so we can expect positive results in Windows 10, too.

Here’s how to download and run this too in Windows 10:

  1. Download the dedicated Firewall Troubleshooter, here.
  2. Run the tool and click on Advanced.
  3. Check the ”Apply repairs automatically” box and click Next.
  4. Wait for the procedure to finish and look for changes.

4. Reset Firewall settings

Constant updates that are the common workflow for Windows 10 have a lot of side effects.

One of those is, allegedly, forced changes of certain system settings concerning essential built-in programs.

Windows Firewall certainly falls in that category. In order to resolve possible issues with an alternative configuration imposed by Windows Update, you should reset Firewall settings.

Follow these instructions to reset Windows Firewall settings and address the issue at hand:

  1. Type Firewall in the Windows Search bar and open Windows Defender Firewall from the list of results.
  2. Click on Restore defaults in the left pane.Windows 10 Firewall error 1068
  3. Click on the Restore defaults button and reboot your PC.

Firewall Settings Error in Windows 10? Here is how to fix it like a real technician!

5. Use Command Prompt to forcibly reset Windows Firewall

Alternatively, you can use the elevated Command Prompt to reset Windows Firewall to default values. It seems like a drag, but it’s rather simple and requires minimal effort.

This is similar to a previous solution, but it will cost you nothing to give it a try if the standard way isn’t giving favorable results.

Here’s how to use Command Prompt to reset Windows Firewall to default values:

  1. Press Windows key + S to open the Search bar.
  2. Type CMD, right-click on Command Prompt, and run it as an administrator.
  3. In the command line, type the following command and press Enter:
    • netsh firewall set opmode mode=ENABLE exceptions=enableWindows 10 Firewall error 6801
  4. Close Command Prompt and restart your PC.

Working in Command Prompt will be like a walk in the park after your check this guide out!

6. Uninstall recent security-related updates

Most of the Windows 10 updates are security-oriented patches. Many of those are covering Windows Defender and Windows Firewall.

And we’re well aware that a lot of those patches bring more issues than benefits.

That could, consequently, mean that one of the recent updates negatively affected Firewall, rendering it unusable.

Luckily, even though you’ll have a hard time disabling Windows Updates for good, you can at least uninstall most of them and resolve issues that way.

Follow these steps to uninstall recent updates and fix possible issues they inflicted on Windows Firewall:

  1. Press Windows key + I to open the Settings app.
  2. Select Update & security.
  3. Click on View installed update history.
  4. Choose to Uninstall updates.Windows could not start the Windows Firewall on local computer
  5. Uninstall all recent updates and restart your PC.

7. Use Third-Party Antivirus

And finally, one solution we picked up from Community forums, but it sounds reasonable.

If your Windows 10 Firewall simply doesn’t work, use third-party antivirus software, and your computer will automatically switch to antivirus’ own firewall.

If you’re not sure what’s the proper antivirus for you to use on Windows 10, check out the list of all Windows 10-compatible antiviruses.

And to make sure you picked up the best, check out the list of the best antivirus programs for Windows 10.

However, we strongly recommend you Bitdefender as the world’s Nr.1 antivirus. It has a lot of useful features and protection tools.

It also optimizes your system and customary take care of your hardware. You will surely find a great plan for you and be sure that it will worth every penny.

That would be all, I hope this article helped you to solve the problem with Firewall in Windows 10 (or convinced you to switch to a third-party software).

If you have any comments or questions, just reach for the comment section below.

This article covers:Topics:

Frequently Asked Questions

  • Yes, it is! Windows Defender can protect your computer from virus and malware but it also includes a configurable firewall to your needs. If it’s not working, read our awesome guide to fix this problem.

  • Go to Windows Defender Firewall, then choose Customize Settings > Turn Windows Firewall on or off for domain, private, and public networks. If you can’t activate Windows Firewall, here’s an expert guide on how you can fix it.

  • Open Windows Security settings and select a network profile. Switch the setting to OFF in Windows Defender Firewall.

Leave a comment below!

add a comment

Leave a Reply

Your email address will not be published. Required fields are marked *

One question. I want install fonts in my computer. ALL custom fonts don’t install, as the computer says. “This file don’t appear to be a valid font file”. I Heard about the Firewall is required to install new fonts in Windows 10. If I do this tutorial, they’ll install? because my firewall don’t activate and don’t update.