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What does the LuComServer_3_4.EXE file do?

The LuComServer_3_4.EXE process is also known as LiveUpdate Engine COM Module and is a part of LiveUpdate. This software is produced by Symantec (www.symantec.com). An obsolete or defective version of LuComServer_3_4.EXE can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about LuComServer_3_4.EXE LiveUpdate Engine COM Module

LuComServer_3_4.EXE is not part of Windows, but it is important nonetheless. LuComServer_3_4.EXE is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 3,192,184 bytes (50% of all these files) or, as the case may be, 3,220,856 bytes.
You can end this service, pause it, or restart it by going to System and Security/Administrative Tools/Services in Control Panel. The service does not run under your user account. This process does not appear as a visible window, but only in Task Manager. The original file is digitally signed. Check your file. The original file has been signed by a trusted signature authority. This lets you check your copy to see if it is a counterfeit. LuComServer_3_4.EXE does not come from Microsoft and is not part of the operating system. You may uninstall the related program using Windows Control Panel. LuComServer_3_4.EXE is capable of monitor other applications. For this reason, 17% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves LuComServer_3_4.EXE. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about LuComServer_3_4?

Lots of space
If you go to your Norton settings and disable Auto Live Update, this will help. Just make sure to do your updates manually every morning, etc...
Dave at Everwood Farm (retired CNE)

Summary: One user considers it harmless. source: file.net

How to uninstall LiveUpdate

LuComServer_3_4.EXE LiveUpdate Engine COM Module fix

To remove LiveUpdate Engine COM Module from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for LiveUpdate in the list of available programs.
  5. Click Uninstall.

How to tell if LuComServer_3_4.EXE (LiveUpdate Engine COM Module) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of LiveUpdate Engine COM Module. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for LiveUpdate Engine COM Module or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or LuComServer_3_4.EXE is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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