What is symlcsvc.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 symlcsvc.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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Symlcsvc.exe file information

Windows Task Manager with symlcsvc
Symlcsvc.exe process in Windows Task Manager

The process known as Symantec Core Component belongs to software Symantec Core Component or Norton Internet Security or Symantec Core LC or Symantec Licensing Technology or Norton Internet Security (Symantec Core LC) by Symantec (

Description: Symlcsvc.exe is not essential for Windows and will often cause problems. Symlcsvc.exe is located in a subfolder of "C:\Program Files\Common Files"—mostly C:\Program Files\Common Files\Symantec Shared\CCPD-LC\. Known file sizes on Windows 10/8/7/XP are 1,251,720 bytes (31% of all occurrences), 1,174,152 bytes and 15 more variants. 
The program is not visible. Symlcsvc.exe is not a Windows system file. It is a Verisign signed file. It is certified by a trustworthy company. Symlcsvc.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 22% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you have any problems with symlcsvc.exe, you can also do the following:
  1) completely remove Norton Internet Security Suite (Control Panel ⇒ Uninstall a Program)
  2) visit the support page
  3) verify that you have installed the latest version.

Recommended: Identify symlcsvc.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as symlcsvc.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the symlcsvc.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 do not use Symantec. I suppose I must have missed some little box you have to uncheck to avoid them foisting their worthless junk onto my computer, while loading some other software. But it eats all my file handles and drags my box to a standstill. Most annoying.
It's part of Norton, an anti-virus which was suppose to protect my computer. It made my games incapable of connecting online and when I uninstalled Norton, it took with it a lot of my programs. They completely vanished.
That even if u stop the process running, so u are able to delete it, kaspersky will inform u that it is still installed, I also know its not a trojen. I'd rather not use my computer than be forced to use a specific company, theres really no need for it, if the products are so good. Still, I have the problem.
  Mazi Nu  
I haven't used Norton in years and recently have been trying to clear all unnecessary files. I was looking at my install/uninstall programs list and saw Symantec listed with a bunch of odd numbers and letters. I clicked to uninstall... As I did this my McAfee service popped up and said it stopped and blocked 2 trojans by the name of Artemis! (etc.)... Listed the file name as SymLCSVC.exe and a process in the Windows system as MsiExec.exe
Essential Symantec File
The File Is a left over extension of the use of notrton virus protection. After realizing the process is still in use i couldn't delete, So i opend up task manager and removed the task called symlcsv.exe which will allow you access to go into the file directory. C/program files/common files/ symantec shared. There just delete the folder. BUT ONLY DO THIS IF YOU DONT USE NORTON ANTIVIRUS. YOU NEED THIS IF YOU DO. That all i know is how to delete it.
Norton Symantec tool
don't use norton and you most likely won't get this problem. Uninstalling norton not effective means of solving issue. norton uninstall tool doesn't work. i rated it important if you have norton installed but really it's not if you use something else.
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of symlcsvc.exe: based on 47 votes with 9 reviews. 24 users think symlcsvc.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 9 users think it's neither essential nor dangerous. 5 users suspect danger. 7 users think symlcsvc.exe is dangerous and recommend removing it. 3 users don't grade symlcsvc.exe ("not sure about it").

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Best practices for resolving symlcsvc issues

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

symlcsvc.exe [all]