Step 2: Navigate to the following registry keys one by one.ġ. Step 1: Press the Windows +R keys to open the Run dialog box. Here are the steps to fix the 0圆d9 error in Windows Defender Firewall:
#Startup failed 0xd9 how to
Therefore, be sure to back up the registry before performing the following steps, read this post - How to Back up Individual Registry Keys Windows 10? But if you modify it incorrectly, the registry file may be corrupted, which will cause a bigger problem for your computer. Then, you can try this solution - reset the permission for Microsoft protection. Regsvr32 firewallapi.dll Solution 4: Reset the Permissions for Microsoft Protection Step 2: Then, you need to type the following commands one by one: Step 1: Open the Start Menu, type cmd and search for it. If the issue still exists, the Windows Firewall configuration is causing the problem. Tip: If the service is running, you need to stop it first, and then change the Startup type as Automatically directly. You can only run scans to remove the malware. Some malware on your system can cause this error. The Firewall will not work once the services are not running.
Windows Firewall needs to run some services to work properly. Windows Firewall and Dependent Services Not Running You have to reset the configuration to fix the error.Ģ.
Sometimes, the issue appears because of the configuration of the Windows Defender Firewall.
#Startup failed 0xd9 code
Here are 3 main reasons for the Windows Defender Firewall error Code 0圆d9. 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. Reasons for the 0圆d9 Error in Windows Defender Firewall
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