How to Fix FirewallAPI.dll is Missing / Not Found Error Messages

Here comes another DLL file error known as Firewallapi.dll error.

Firewallapi.dll Windows 10 is caused when the application is executing the process or the firewallapi.dll file is missing then it displays the error message:

The program can`t start because firewallapi.dll is missing from your computer. Try reinstalling the program to fix the problem.

If you are also noticing this error on your computer screen and want to get rid of it then continue reading this article.

Here you will be provided with the solutions that will help you to overcome the firewallapi 80201 error easily.

Before you move towards the fixes get to know what is firewallapi.dll and its related error messages.

What is FirewallAPI.dll?

FirewallAPI.dll is a DLL file also known as the Windows Firewall API. Being a crucial system file of Windows operation system it contains few sets of driver functions and procedures that may be applied by the Windows.

It ensures that Windows programs are operated properly. If somehow this file went missing then it may affect the related software work.

Below are some of the related firewallapi.dll error messages, have a look at them.

Some Related FirewallAPI.dll Error Messages

• “FirewallAPI.dll not found.”
• “Cannot register FirewallAPI.dll.”
• “The file FirewallAPI.dll is missing.”
• “Cannot find C:\Windows\System32\\FirewallAPI.dll.”
• “FirewallAPI.dll Access Violation.”
• “Cannot start MSDN Disc 4616.01. A required component is missing: FirewallAPI.dll. Please install MSDN Disc 4616.01 again.”
• “This application failed to start because FirewallAPI.dll was not found. Re-installing the application may fix this problem.”

Now, that you know what is Firewallapi.dll file and other error messages. Let’s get going with the solutions.

How to Fix Firewallapi.Dll Is Missing Error?

Well, there are few solutions mentioned in this article that you help you to get rid of firewallapi.dll Windows 10 error.

So, what are you waiting for? Go through them and solve the error.

Solution 1: Register Firewallapi.Dll File

To register the firewallapi.dll file might help you to fix the firewallapi dll 80201 error from your Windows OS.

You can register or unregister the DLL file with the regsvr32 tool. This is a command-line utility tool that helps in re-registering the DLL or ActiveX files.

Follow the steps to do so:

• Press the Windows icon
• Type cmd, right-click on the result and select Run as administrator

• In the command prompt window, type the following commands and press the enter key:
• To un-register the firewallapi.dll file:

regsvr32 /u firewallapi.dll

• To register the firewallapi.dll file:

regsvr32 firewallapi.dll

The above steps will register the firewallapi.dll file, now, you can open the application without the firewallapi.dll Windows 10 error.

Solution 2: Perform SFC Scan

If your firewallapi.dll is missing in Windows 10 then it is a must to scan your PC with System file checker. This will replace the missing file and repair the corrupt system files.

Follow the steps to perform an SFC scan:

• Click on the Windows icon
• Type cmd and select run as administrator by right-clicking on it

• In the command prompt window, type sfc/scannow and hit the enter key

After executing the command, the scanning process will begin. This might take a couple of minutes so you must have patience.

Once the scanning is completed, restart your PC and run the application that was displaying you this firewallapi.dll error and see if the error disappeared or not.

Solution 3: Update Drivers

There is also a possibility of firewallapi.dll is missing Windows 10 error to appear because of outdated drivers. Therefore, it is suggested to update your drivers to get rid of this DLL error.

Follow the steps to update drivers:

• Click on Windows icon
• Type Device Manager and hit the enter key

• Click on the Device to expand the category
• Select the driver that needs to be updated
• Click on the Update driver software

• Click on Search automatically for updated driver software

If there are any updates for the driver then it will get downloaded. After your driver is updated try to run the application and check whether the firewallapi.dll Windows 10 error vanished or not.

If manually updating the driver is not easy for you then you can try Driver Updater. It will not only update your driver but also solves other driver-related issues.

Get Driver Updater to Update Drivers Automatically

Solution 4: Backup your Windows registry

If in case the firewallapi.dll is missing error is caused due to registry then backing up your registry can solve this error.

Follow the steps to proceed further:

• Press the Windows icon
• Type regedit and hit the enter key

• Click on YES, if a permission Window appears
• Select Export by double-clicking on the File menu
• Choose the folder to keep the backup
• Select All in the Export range
• Enter the file name and click on save button

If in case you want to restore your registry, then follow the below steps:

• Open the registry editor as shown above
• Click on File and select Import

• Look for the backup file
• Click on the open button
• Restart your computer

Doing so your registry will be restored and the firewallapi dll 80201 error will be no longer visible.

Solution 5: Scan for Viruses

If your operating system is infected with a virus or any other malicious program then there are chances of firewallapi dll error to appear on your Windows screen.

Therefore, it is suggested to scan your PC for virus infection, for that you can try the Spyhunter. This will scan your Windows and detect viruses, malware, adware, ransomware, and other malicious programs and cleans your PC.

Get Spyhunter to Remove Viruses and Malicious Programs from PC

Best & Easy Way to Fix Firewallapi dll Error

Above-provided fixes will definitely work in solving the firewallapi.dll Windows 10 error. If you are a novice person and find difficulty in performing the manuals then here is an easy way to fix this error.

Try the PC Repair Tool. This is an advanced repair tool designed by professionals that scan your PC, detect all the errors and solve them automatically.

This tool fixes errors such as DLL, registry, BSOD, game, update, application & many others, prevent PC from virus, speed up the slow PC, repair damaged files and provide a better experience.

Get PC Repair Tool Fix Firewallapi.dll Error

Conclusion

Alright…I have gathered the information that will give a helping hand in solving the firewallapi.dll Windows 10 error.

Perform the solutions one after the other and see which one fixes the error. If none of the troubleshooting fixes work then go with the easy way provided above.

I hope you liked this article and it guided you in overcoming the DLL error and resolving your other queries.