What is fsdfwd.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 fsdfwd.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.

Click to Run a Free Scan for fsdfwd.exe related errors

Fsdfwd.exe file information

Windows Task Manager with fsdfwd
Fsdfwd.exe process in Windows Task Manager

The process known as F-Secure Anti-Virus Internet Shield daemon or F-Secure Internet Shield daemon belongs to software F-Secure Anti-Virus Internet Shield or F-Secure Anti-Virus Firewall Daemon or F-Secure Internet Shield by F-Secure (

Description: Fsdfwd.exe is not essential for the Windows OS and causes relatively few problems. Fsdfwd.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 208,959 bytes (34% of all occurrences), 135,255 bytes and 10 more variants. 
The program has no visible window. The fsdfwd.exe file is not a Windows core file. The process listens for or sends data on open ports to a LAN or the Internet. Fsdfwd.exe is able to monitor applications, hide itself and manipulate other programs. Therefore the technical security rating is 52% dangerous; however you should also read the user reviews.

Uninstalling this variant: You could safely remove the program using the uninstall program of F-Secure Anti-Virus or F-Secure Anti-Virus Client (Control Panel ⇒ Uninstall a Program).

Recommended: Identify fsdfwd.exe related errors

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

Ich denke mal das es nur ein Background scanner von F-Secure System ist !
  Crash'n Burn  
Ist in der Tat ein Backgroundscanner, aber einer der sich ziemlich rabiat die komplette CPU Zeit ungefragt krallt. Kann nerven
F-Secure nutzt 3 Scanengines beim Echtzeitscanning. Hat man z.b. den Indizierungsdienst von windows laufen, dann kann das system sehr schnell in die knie gehen, da f-secure jede datei überprüft, die geöffnet wird. so auch die dateien, die der indizierungsdienst öffnet...
F-Secure process
Part of F-Secure -internet security suite
  Timo   (further information)
it's an fsecure file

Rating chart

Summary: Average user rating of fsdfwd.exe: based on 8 votes with 7 user comments. 6 users think fsdfwd.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous.

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Best practices for resolving fsdfwd issues

A clean and tidy computer is the key requirement for avoiding problems with fsdfwd. 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 fsdfwd.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

fsdfwd.exe [all]