What is olfsnt40.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 olfsnt40.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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Olfsnt40.exe file information

The process known as Symantec Fax Starter Edition Port Launcher belongs to software Symantec Fax Starter Edition Printer Driver by Microsoft (

Description: Olfsnt40.exe is not essential for Windows and will often cause problems. The file olfsnt40.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 46,077 bytes (33% of all occurrences), 46,080 bytes or 45,568 bytes. 
The application is loaded during the Windows boot process (see Registry key: MACHINE\User Shell Folders). The file is not a Windows core file. The program is not visible. The application can be removed using the Control Panel's Add\Remove programs applet. Therefore the technical security rating is 38% dangerous; however you should also read the user reviews.

Uninstalling this variant: In case of any problems with olfsnt40.exe, you can also completely remove Microsoft Office Groove MUI or Microsoft Office 2000 SR-1 (Control Panel ⇒ Uninstall a Program).

Recommended: Identify olfsnt40.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as olfsnt40.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the olfsnt40.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

runs start up mechanic
its a microsoft office file not required unless you have a fax
I think there's more to it then what was mentioned, as removing it will indeed prevent you from seeing your programs. After which, you'll need to find a way to restoring your computer.

Summary: Average user rating of olfsnt40.exe: based on 4 votes with 3 user comments. One user thinks olfsnt40.exe is essential for Windows or an installed application. 3 users think it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving olfsnt40 issues

A clean and tidy computer is the key requirement for avoiding problems with olfsnt40. 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 olfsnt40.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

olfsnt40.exe [all]