What is npptNT2?

The genuine npptNT2.sys file is a software component of nProtect GameGuard by INCA Internet Co..
NpptNT.sys is a kernel-level system driver for the nProtect GameGuard, a root software that prevents cheating in many Asian online multiplayer games. Drivers enable hardware components to communicate with software without additional programming from the software developer. This file is not a critical Windows component and should be removed if known to cause problems. GameGuard (often referred to as 'GG') protects online gameplay by minimizing potential cheats through several methods such as monitoring the entire memory being used by the computer, logging keystrokes made by the keyboard, and terminating applications black-listed by game developers. The program also has an auto-update feature to tackle new threats as they arise. The INCA Internet Co. is a Korean security company that provides security solutions primarily to the gaming and e-commerce industries. It also develops online antivirus solutions for regular users and internal security systems for corporations. INCA products are heavily used in many Korean and Japanese financial organizations, public institutions, and online game development companies.

npptNT2 stands for nProtect System Port Speed Check Kernel Mode Driver for Windows NT (version 2)

NpptNT2.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 npptNT2.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for npptNT2 drivers in need of updating

NpptNT2.sys file information

The process known as nProtect NPSC Kernel Mode Driver for NT belongs to software nProtect NPSC Kernel Mode Driver for NT by INCA Internet Co. (

Description: NpptNT2.sys is not essential for Windows and will often cause problems. The npptNT2.sys file is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 4,682 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. There is no detailed description of this service. The npptNT2.sys file is not a Windows core file. Therefore the technical security rating is 30% dangerous, however you should also read the user reviews.

Recommended: Identify npptNT2.sys related errors

Important: Some malware camouflages itself as npptNT2.sys. Therefore, you should check the npptNT2.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

It is part of a rookit game hacking protection software, called GameGuard, which uses rootkit to detect and disable common game hacks.
This is a part of the nProtect GameGuard rootkit that prevents hacking in online games. It allows full access to your computer system and if possible all games using GameGuard should be removed. GameGuard itself is not dangerous but hackers can and do hijack the GameGuard system files for malicous intents.
GameGuard Protection System NT Kernel Driver
  DDestroyer   (further information)
causing svchost errors on my PC
Unrestricted I/O access vulnerability in INCA Gameguard
The North American Lineage II Community
  Alexander   (further information)
GameGuard indeed - well, you need it to run games like maplestory, gunz and free MMORPG games.. my computer sufferd from a conflict with windows system and caused BSOD almost all the time - so better remove it... not just uninstall the game - remove the file(s) and from the registry as well
Tritt auch bei World of Warcraft auf. Ungewiss inwiefern diese Software auf das System zugreift, aber bei 5 Mio WoW-Spielern weltweit unwahrscheinlich dass es Ärger macht.
system driver of gameguard "anti-cheating tool": The only thing it does is prevent normal players from playing and crashing random services on your PC. It contains a root kit that can allow unprivileged software to cause damage to your hardware!!
I dont know much about the file itself but it would be incredibly hard to abuse this file if it is legit, they would have to hack the anti-hack and the hosts servers and intercept packets just to find out any info about you. In a nutshell unless you are really being hatefully targeted its probably not going to cause you any harm. Plus it is required for many good games (My fav Alliance of Valiant Arms aka AVA).
  Anonymous Cool Guy  
Its a Gameguard, i have it when i play wow & cabal.
It's know to cause problem with Browsers (Chrome and Opera tested and confirmed) It also cause Vista to crash, Adobe Flash video to freeze and endless sound loop. It will try to take control of other process and terminate them as it chooses. Cannot be removed with the game program it comes in. Regedit is require to removal it.
    (further information)

Rating chart

Summary: Average user rating of npptNT2.sys: based on 16 votes with 12 user comments. 2 users think npptNT2.sys is essential for Windows or an installed application. One user thinks it's probably harmless. 4 users think it's neither essential nor dangerous. 5 users suspect danger. 4 users think npptNT2.sys is dangerous and recommend removing it.

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Best practices for resolving npptNT2 issues

A clean and tidy computer is the key requirement for avoiding problems with npptNT2. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the npptNT2.sys process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

npptNT2.sys [all]