What is fsbwsys.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 fsbwsys.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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Fsbwsys.exe file information

The process known as fsbwsys belongs to software F-Secure BackWeb or F-Secure Anti-Virus Client by F-Secure (

Description: Fsbwsys.exe is not essential for the Windows OS and causes relatively few problems. Fsbwsys.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 278,581 bytes (28% of all occurrences), 270,389 bytes and 4 more variants. 
The program has no visible window. The file is not a Windows system file. Fsbwsys.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 49% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to uninstall the program using the Control Panel ⇒ Uninstall a ProgramF-Secure Anti-Virus Client.

Recommended: Identify fsbwsys.exe related errors

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

This file is part of F-Secure Backweb, that delivers virus definition updates.
  j.s.p.   (further information)
A file that runes when you install Fsecure anti-virus
Die Dateien fsbwih.exe, fsbwsys.exe, fsdfwd.exe und fspex.exe verarbeiten im Hintergrund die Virenmeldungen von F-Secure.
  Marc de Roche   (further information)

Summary: Average user rating of fsbwsys.exe: based on 9 votes with 3 user comments. 9 users think fsbwsys.exe is essential for Windows or an installed application.

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Best practices for resolving fsbwsys issues

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

fsbwsys.exe [all]