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What does the nessus-service.exe file do?

The nessus-service.exe process is also known as Tenable Nessus (Version (x64)) and is a part of Tenable Nessus. This software is produced by Tenable Network Security (www.tenable.com). An obsolete or defective version of nessus-service.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 nessus-service.exe Tenable Nessus

nessus-service.exe is not part of Windows, but it is important nonetheless. Nessus-service.exe is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 11,264 bytes (50% of all these files), 17,424 bytes or, as the case may be, 11,776 bytes.
This file contains no information about the producer or the version. This particular software does not appear as a visible window, but only in Task Manager. You can find the file or its related application in Control Panel under Programs. You can then rerun the setup or uninstall the program. The nessus-service file is no part of Microsoft Windows. nessus-service.exe appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 31% 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 nessus-service.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 nessus-service?

The file spreads very slowly and does not often make an appearance. Therefore, feedback from other users is not yet available.

Summary: source: file.net

How to uninstall Tenable Nessus

To remove Tenable Nessus from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate Tenable Nessus in the list of displayed applications.
  5. Click the program, and then click Uninstall.
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How to tell if nessus-service.exe (Tenable Nessus) 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 Tenable Nessus. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Tenable Nessus 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 nessus-service.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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