What is avgnsx.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 avgnsx.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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Avgnsx.exe file information

Windows Task Manager with avgnsx
Avgnsx.exe process in Windows Task Manager

The process known as AVG Network scanner Service or AVG Online Shield Service belongs to software AVG Internet Security or Steganos Internet Security (version 2009) by AVG Technologies CZ, s.r.o (

Description: Avgnsx.exe is not essential for the Windows OS and causes relatively few problems. The file avgnsx.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 595,736 bytes (23% of all occurrences), 594,712 bytes and 39 more variants. 
The program is not visible. The avgnsx.exe file is a Verisign signed file. The avgnsx.exe file is certified by a trustworthy company. Avgnsx.exe is not a Windows core file. The process listens for or sends data on open ports to a LAN or the Internet. Therefore the technical security rating is 33% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software publisher AVG provides an uninstall program (Control Panel->Software->AVG or AVG Free).

Recommended: Identify avgnsx.exe related errors

Important: Some malware camouflages itself as avgnsx.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the avgnsx.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 believe this file uploads something to a hacker and is a keylogger
AVG Anti-virus network scanner
  John Eltek   (further information)
AVG Anti-virus "network scanner service" stuff
  Arran Fortuna  
Very offen Avgnsx.exe becomes such cpu intensive that it brings pc down on its knees. How to get rid of avgnsx resource hogging? Simply disable AVG link scanner in your antivirus settings. You would not need it much anyway.
  Elleonor   (further information)
when playing video it makes it flicker freeze

Summary: Average user rating of avgnsx.exe: based on 4 votes with 5 user comments. 2 users think avgnsx.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. 2 users don't grade avgnsx.exe ("not sure about it").

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Best practices for resolving avgnsx issues

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

avgnsx.exe [all]