What is TFService.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 TFService.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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TFService.exe file information

Windows Task Manager with TFService
TFService.exe process in Windows Task Manager

The process known as PC Tools ThreatFire Service belongs to software Spyware Doctor or ThreatFire or PC Tools Internet Security (version 2009) or Spyware Doctor with AntiVirus or PC Tools Spyware Doctor or PC Tools Spyware Doctor with AntiVirus by PC Tools (

Description: TFService.exe is not essential for the Windows OS and causes relatively few problems. The file TFService.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 70,928 bytes (52% of all occurrences), 66,880 bytes and 4 more variants. 
The program is not visible. The TFService.exe file is a Verisign signed file. TFService.exe is digitally signed. The file is not a Windows system file. Therefore the technical security rating is 25% dangerous, however you should also read the user reviews.

Uninstalling this variant: The developer Pctools provides an update site [1][2] and an uninstaller (Control Panel ⇒ Uninstall a Program ⇒ Spyware Doctor or ThreatFire).

Recommended: Identify TFService.exe related errors

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

Gehört zum Programm Threatfire, einem verhaltensgesteuerten Virenscanner, soweit ich weiss sendet dieser Prozess Daten an die Threatfire-Community. Meiner Meinung nach ok, da es das Programm nur verbessert.
i had threat fire from PC tools, but removed it, yet the process still runs... iv tryed ending program through my task manager, but a program error pops up
It's an Anti-Virus
ja ist vom Programm Threatfire, beansprucht nur für ne kurze zeit den cpu. Falls gerade störend ist, rechts unten auf das feuer symbol klicken und unterbrechen klicken.
my pc has started freezing and when I check Task Manager I find TFService.exe using 30-40% of the CPU
uses nearly 50% of CPU all the time. I've started ending the process via task manager
  Jim H.  

Summary: Average user rating of TFService.exe: based on 3 votes with 6 user comments. One user thinks TFService.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. 3 users don't grade TFService.exe ("not sure about it").

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Best practices for resolving TFService issues

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

TFService.exe [all]