What is AuthFw.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the AuthFw.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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AuthFw.exe file information

The process known as Authentium Firewall SDK belongs to software Aluria Firewall or Authentium Firewall SDK or Authentium FW SDK or Authentium by Authentium (

Description: AuthFw.exe is not essential for Windows and will often cause problems. AuthFw.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 385,024 bytes (83% of all occurrences) or 394,808 bytes. 
The program is not visible. You can uninstall this program in the Control Panel. AuthFw.exe is not a Windows core file. AuthFw.exe is able to monitor applications and hide itself. Therefore the technical security rating is 23% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you want to remove the program completely, go to Control Panel ⇒ Software ⇒ Aluria Firewall or Authentium FW SDK.

Recommended: Identify AuthFw.exe related errors

If AuthFw.exe is located in a subfolder of "C:\Program Files", the security rating is 27% dangerous. The file size is 495,616 bytes. The program has no visible window. The process can be uninstalled in the Control Panel. The file is not a Windows system file. AuthFw.exe is able to hide itself and monitor applications.

Uninstalling this variant: If you want to remove the program completely, go to Control Panel ⇒ Software ⇒ Authentium Firewall SDK.

Important: Some malware camouflages itself as AuthFw.exe. Therefore, you should check the AuthFw.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

It was installed with an Earthlink security suite for Earthlink customers after uninstalling it with the Add and Remove programs feature in control panel it still showed that it was running in the security center, still haven't found a way to remove it.

Summary: Average user rating of AuthFw.exe: based on 1 vote with 1 user comment. One user suspects danger.

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Best practices for resolving AuthFw issues

A clean and tidy computer is the key requirement for avoiding problems with AuthFw. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the AuthFw.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

AuthFw.exe [all]