What is LuCallbackProxy.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 LuCallbackProxy.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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LuCallbackProxy.exe file information

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

The process known as LuCallBackProxy Module belongs to software LiveUpdate or LuCallBackProxy Module by Symantec (

Description: LuCallbackProxy.exe is not essential for Windows and will often cause problems. LuCallbackProxy.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 484,720 bytes (39% of all occurrences), 104,128 bytes and 6 more variants. 
The program is not visible. It is a Verisign signed file. The file has a digital signature. It is not a Windows core file. LuCallbackProxy.exe is able to hide itself. Therefore the technical security rating is 20% dangerous, however you should also read the user reviews.

Uninstalling this variant: You have the option to do the following:

Recommended: Identify LuCallbackProxy.exe related errors

Important: Some malware camouflages itself as LuCallbackProxy.exe. Therefore, you should check the LuCallbackProxy.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

Its a process from Symantec. LU comes from Live Update that is the Symantec update process.
This LUCALLBACKPROXY process hang up my PC during the boot-up. It should be ranked as a virus that made my PC sick! ... I removed it and my PC was back to the healthy stage!
I was updating symantec when i noticed the file. Sure takes alot of resources from my computer which i hear symantec is real bad on system resources.
Just noticed the same behavior as "Shirley Urbanec" above.
It's a very annoying part of the Symantec Security Suite, it is a resource hog, and happily bogs down most business systems due to their lack of technology upgrades.
Remove it,if it is causing you problems. My computer was almost virtually disabled from it, removed it, and now runs good as gold.
  Peter Criss  
It is part of the Live Update feature in Symantec/Norton utility. Action: Disable Autoprotect in Symantec/Norton Anti-Virus. This fixed the issue for me, and I found my system was signficantly responsive afterwards.
It matters little if it is Norton or not.... the program eats up huge amounts of computer resources, making it malware at best and a trojan at worse. Norton needs to clean up this resource hog now... or people need to stop buying their products.
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of LuCallbackProxy.exe: based on 41 votes with 9 reviews. 14 users think LuCallbackProxy.exe is essential for Windows or an installed application. 7 users think it's probably harmless. 2 users think it's neither essential nor dangerous. 7 users suspect danger. 11 users think LuCallbackProxy.exe is dangerous and recommend removing it. 2 users don't grade LuCallbackProxy.exe ("not sure about it").

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Best practices for resolving LuCallbackProxy issues

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

LuCallbackProxy.exe [all]