What is em_exec.exe?

The genuine em_exec.exe file is a software component of Logitech MouseWare macro driver by Logitech.
"em_exec.exe" is a driver file in Windows for Logitech Mouseware products. The file displays a system tray icon for easy access to mouse configuration tools. It is also used for trackball products. In addition, the file is required in order for the device to function properly and also includes drivers for Logitech Smartmove, which snaps the cursor to the current default button on dialog pop-ups, such as with installations or with JavaScript prompt boxes. The file accepts user input that includes turning the Smartmove feature on or off. Logitech began in 1981 as a leader in mice products. Now, they have evolved into providing many products designed to make digital life easier, such as innovative keyboards, speakers, webcams, and lots more.

em_exec stands for event macro_executive

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 em_exec.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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Em_exec.exe file information

Windows Task Manager with em_exec
Em_exec.exe process in Windows Task Manager

The process known as Logitech Events Handler Application or Control Center or MouseWare belongs to software MouseWare or Mozilla Thunderbird or Whiz Kid US - Web World - The or TerraTec Komplexer VSTi or Verizon Media Manager or Adobe® Photoshop® Album by Logitech (

Description: Em_exec.exe is not essential for the Windows OS and causes relatively few problems. Em_exec.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\Windows—mostly C:\Program Files\Logitech\mouseware\SYSTEM\. Known file sizes on Windows 10/8/7/XP are 37,888 bytes (75% of all occurrences), 38,912 bytes and 4 more variants. 
The software can be uninstalled in the Control Panel. It is not a Windows system file. The file is able to record keyboard inputs. The program has no visible window. Em_exec.exe is able to monitor applications. Therefore the technical security rating is 68% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with em_exec.exe, you can uninstall the program using the Control Panel ⇒ Uninstall a ProgramLogitech / MouseWare, ask the developer, Logitech, for assistance or search for an update on the vendor’s website.

Recommended: Identify em_exec.exe related errors

External information from Paul Collins:

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

I've used it for 10 months with no adverse results. it appears to be a logitech mouse file and nothing else.
It's a Logitech file for your mouse.
Simply a waste of memory. It has no undesireable processes, but uses around 2mb-6mb of RAM. End its process if you do not use the click-once double click button. Seriously people, dont post it as harmful. The system crashes may be a regeristry failure or a anitvirus "blue screen" error.
I know that it just starts up randomly while I'm on facebook and then prevents me from typing in any field or using dropdown menus. Sometimes this problem migrates to all of firefox and all fields on all sites. I recently reinstalled this software after I reinstalled XP Home. Previously I had no problems with my logitech software on any peripheral. When the whole thing takes over, it's never enough to just shut down the process, I have to restart firefox. It doesn't seem to bother IE 8 beta at all
  shamarie h  
I installed the older version ot the "logitech" mouse software because the options I needed weren't available with the XP that I bought. I use "FIREFOX" alot andI found the software during a "bottle neck" occasion which was slowing down my PC..The process doesntt show after start-up but only after I start using "FIREFOX" . I don't know if this is related to the -older version- download or if supposed to respond in some way to the high volume tabs I use. I then call the task manager and delete it . It doesn't seem to affect the proper operation at all... but don't know what benefit it might h
This file is needed for Logitech mice. Do not remove it.
It makes my computer run sooo slowly. Whenever it is up my CPU usage is always around 100%. But when I stop it via "end process" the CPU usage drops drastically to around 20-ish% To be this could be some sort of malware nameddisguised as a safe file.
Interferes with Nortel IPSec V06_01.054 - causes IPSec to shut down when you suspend your PC with Cntrl-Alt-Del / Lock
  Ron Sonntag  
More comments can be found here:
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Rating chart

Summary: Average user rating of em_exec.exe: based on 159 votes with 9 reviews. 117 users think em_exec.exe is essential for Windows or an installed application. 11 users think it's probably harmless. 18 users think it's neither essential nor dangerous. 7 users suspect danger. 6 users think em_exec.exe is dangerous and recommend removing it. 8 users don't grade em_exec.exe ("not sure about it").

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Best practices for resolving em_exec issues

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

em_exec.exe [all]