What is naveng?

The genuine naveng.sys file is a software component of Symantec Antivirus Engine by Symantec.
This is the operational 'hub' of the antiv-virus program and includes the engine core; file system layer; file type scanners (rtf, ppt, mz, pe, etc); memory scanners; file decompression (eg ZIP archives, UPX compressed executables); and code emulators. An AV engine should be developed in a programming language that is available for all platforms.

NAVEng stands for Norton Anti Virus Engine

Naveng.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if naveng.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for naveng drivers in need of updating

Naveng.sys file information

The process known as AV Engine belongs to software Symantec Antivirus Engine by Symantec (

Description: Naveng.sys is not essential for the Windows OS and causes relatively few problems. Naveng.sys is located in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 89,104 bytes (36% of all occurrences), 82,256 bytes and 7 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The service has no detailed description. The file is not a Windows core file. Naveng.sys is a Verisign signed file. The file is digitally signed. naveng.sys appears to be a compressed file. Therefore the technical security rating is 19% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to safely remove the program using the uninstall program of Outerinfo (Control Panel ⇒ Uninstall a Program).

Recommended: Identify naveng.sys related errors

Important: Some malware camouflages itself as naveng.sys. Therefore, you should check the naveng.sys 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

Norton Antivirus
  J├╝rgen Quast  
Part of Symantec Norton Internet Security suite
  Georg   (further information)
A function of Norton Anti Virus 2004
Related to VX2.Transponder Browser Plug In
should I allow it to install??
  Valeri Mason  
Belongs to Norton Internet Security
This file causes my Windows XP restarts itself and cannot turn on properly.
Norton antivirus
Rootkit Detection program detects it as a rootkit
Norton Internet Security 2010 AV Engin

Rating chart

Summary: Average user rating of naveng.sys: based on 10 votes with 10 user comments. 6 users think naveng.sys is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. 2 users suspect danger. One user thinks naveng.sys is dangerous and recommends removing it. 2 users don't grade naveng.sys ("not sure about it").

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Best practices for resolving naveng issues

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

naveng.sys [all]