What is afwServ.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 afwServ.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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AfwServ.exe file information

Windows Task Manager with afwServ
AfwServ.exe process in Windows Task Manager

The process known as Avast firewall service or AVG firewall service belongs to software Avast Internet Security or Avast Antivirus or Avast Free Antivirus or AVG Internet Security System by AVAST Software ( or Avast Software s.r.o or AVG Technologies CZ, s.r.o ( or ALWIL Software (

Description: AfwServ.exe is not essential for the Windows OS and causes relatively few problems. The afwServ.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 119,200 bytes (7% of all occurrences), 113,704 bytes and 22 more variants. 
The program has no visible window. AfwServ.exe is certified by a trustworthy company. The file is not a Windows core file. AfwServ.exe is able to monitor applications. Therefore the technical security rating is 23% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case you experience problems using afwServ.exe, you can also do the following:
  1) safely remove the program using the uninstall program of avast! Internet Security or Avast Internet Security (Control Panel ⇒ Uninstall a Program)
  2) visit the website.

Recommended: Identify afwServ.exe related errors

If afwServ.exe is located in a subfolder of C:\, the security rating is 62% dangerous. The file size is 106,488 bytes. It can change the behavior of other programs or manipulate other programs. The program is not visible. It is digitally signed. The file is not a Windows core file.

Uninstalling this variant: In case you experience problems using afwServ.exe, you can also do the following:
  1) safely remove the program using the uninstall program of avast! Internet Security (Control Panel ⇒ Uninstall a Program)
  2) visit the website.

Important: Some malware camouflages itself as afwServ.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the afwServ.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

On MY computer it is part of avast firewall
Its the basic firewall given to those with a Avast security Acct.
part of Avast Firewall
When you download avast 30 day free trial there are three processes seen on Windows Task Manager: avastui.exe, AvastSvc.exe, and afwServ.exe (Avast Firewall Service).
Part of Avast Antivirus 100% safe
  Matt   (further information)
If you have Avast AV, leave it running if you've turned the Windows firewal off - it's Avast's firewall. If you have your Windows firewall running, then you can turn Avast's off...

Rating chart

Summary: Average user rating of afwServ.exe: based on 8 votes with 6 user comments. 5 users think afwServ.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user suspects danger. One user thinks afwServ.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving afwServ issues

A clean and tidy computer is the key requirement for avoiding problems with afwServ. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the afwServ.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

afwServ.exe [all]