What is speedfan.exe?

The genuine speedfan.exe file is a software component of SpeedFan by Almico Software (
Speedfan.exe is an executable file that belongs to the SpeedFan application, a program that lets users monitor system temperature and manually adjust speed settings for the heatsink fan. A driver is a software program that provides communication between the hardware and the software components of a system. This is not an essential Windows process and can be disabled if known to create problems. Speedfan was originally written by Alfredo Milani Comparetti and released in 2001 for the Windows platform. Its features include monitoring S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) readings for EIDE, SATA and SCSI hard disks, in-depth online analysis of the S.M.A.R.T. data to a database with statistical models of hard disks.

SpeedFan stands for SpeedFan - Hardware and SMART Monitor

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 speedfan.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 speedfan.exe related errors

Speedfan.exe file information

Windows Task Manager with speedfan
Speedfan.exe process in Windows Task Manager

The process known as SpeedFan - Hardware and SMART Monitor belongs to software SpeedFan by Almico Software ( ( or Almico Software (

Description: Speedfan.exe is not essential for the Windows OS and causes relatively few problems. Speedfan.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\—generally C:\Program Files\SpeedFan\. Known file sizes on Windows 10/8/7/XP are 4,683,768 bytes (15% of all occurrences), 4,768,360 bytes and 13 more variants. 
There is no information about the author of the file. The speedfan.exe file is not a Windows core file. The file has a digital signature. The program is not visible. Speedfan.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 36% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you still experience problems with speedfan.exe, you can do the following:
  1) completely remove SpeedFan (Control Panel ⇒ Uninstall a Program)
  2) go to the software publisher,, for advice.

Recommended: Identify speedfan.exe related errors

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

It is a motherboard monitor, very reliable and not dnagerous at all.
  Parsifal   (further information)
Main executable for the usefull programm SpeedFan.
    (further information)
progy that hlpes me monitor my PC temp... not harmful at all
Fan speed and temperature monitor, excellent prog!
Klasse Programm, freeware
  harps   (further information)
Software to monitor temperatures and fan speeds. Hijacks fan controls basicly killing the computer if you uninstall it.
Not to be installed. Installs delta toolbar via download manager.

Rating chart

Summary: Average user rating of speedfan.exe: based on 13 votes with 8 user comments. 10 users think speedfan.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. One user thinks speedfan.exe is dangerous and recommends removing it.

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Best practices for resolving speedfan issues

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

speedfan.exe [all]