What is LuComServer_2_5.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 LuComServer_2_5.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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LuComServer_2_5.EXE file information

The process known as LiveUpdate Engine COM Module belongs to software LiveUpdate by Symantec (

Description: LuComServer_2_5.EXE is not essential for the Windows OS and causes relatively few problems. LuComServer_2_5.EXE is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,627,248 bytes (50% of all occurrences), 1,627,288 bytes or 1,631,344 bytes. 
The program has no visible window. It is a Verisign signed file. The file has a digital signature. The file is not a Windows system file. LuComServer_2_5.EXE is able to monitor applications. Therefore the technical security rating is 29% dangerous; however you should also read the user reviews.

Uninstalling this variant: There is a possibility to safely remove the program using the uninstall program of LiveUpdate (Control Panel ⇒ Uninstall a Program).

Recommended: Identify LuComServer_2_5.EXE related errors

Important: Some malware camouflages itself as LuComServer_2_5.EXE, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the LuComServer_2_5.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

Norton AV 2005 (aucun problème) Symantec Liveupdate
Never notified that lucomserver is part of symantec
  bob adams  
not dangerous, see symantec web site
  gambler   (further information)
about its function , perpose and save file location
Found it when my computer lockedup -windows me
  Joe Kenney  
this is not a dangerous file. It is simply part of the nortan processes.
  Jeremy Tally-Major Computer Networking  
If found in Temp Internet folder must be dodgy!
  Stephen Hillier  
It pops up every few minutes. I don't know how to stop it.
  Harold McNew  
Seems to be from Symantec. Mine is located at c:/programme/symantec/liveupdate. i uninstalled norton av, but it still runs in the background. i think its unharmful, but AS ALWAYS (?!) a trojan could choose the same name.

Rating chart

Summary: Average user rating of LuComServer_2_5.EXE: based on 10 votes with 9 user comments. 7 users think LuComServer_2_5.EXE is essential for Windows or an installed application. 2 users think it's probably harmless. One user thinks it's neither essential nor dangerous. 5 users don't grade LuComServer_2_5.EXE ("not sure about it").

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Best practices for resolving LuComServer_2_5 issues

A clean and tidy computer is the key requirement for avoiding problems with LuComServer_2_5. 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 LuComServer_2_5.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

LuComServer_2_5.EXE [all]