What is DumaNT?

The genuine DumaNT.sys file is a software component of Stereo Helper Driver by NVIDIA.
DumaNT.sys is an auxiliary driver that belongs to Nvidia. A driver is a program that allows communication between the software and hardware devices of a computer. This driver supports 3D stereo vision while using Nvidia graphics cards. It is often detected as a keylogger as it monitors for hot-key presses to let users control the level of 3D separation when in a game. This file is harmless. The Nvidia Corporation is an American company that manufactures GPUs (graphics processing units). The company is best known for their flagship GPU line of products called, 'GeForce'. It was founded in 1993 by Jen-Hsun Huang, Chris Malachowsky and Curtis Priem. Currently, it is one the largest companies in the computer industry and rakes in an annual $4.1 billion. Nvidia is headquartered in Santa Clara, California, USA.

DumaNT stands for DumaNT Auxillary Driver for Stereo

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

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

DumaNT.sys file information

The process known as DumaNT Auxillary Driver for Stereo or DUMA NT Keyboard Filter belongs to software Stereo Helper Driver or Stereo Driver or NVIDIA Stereo Helper Service by Windows ( (version 2000 DDK provider) or NVIDIA (

Description: DumaNT.sys is not essential for Windows and will often cause problems. The DumaNT.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 334,976 bytes (40% of all occurrences), 333,696 bytes, 334,848 bytes, 399,700 bytes or 395,904 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. There is no detailed description of this service. The file is not a Windows core file. DumaNT.sys is a keyboard driver, can record inputs. Therefore the technical security rating is 50% dangerous, however you should also read the user reviews.

Recommended: Identify DumaNT.sys related errors

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

Nvidia 3d Stereo Treiber
  Ronny Hevekerl   (further information)
sperrt Brausertastatureingaben
Nvidia 3d Stereo helper,support essential keyboard(better do not remove)
Nvidia driver for 3D stereo vision - I think it is detected as keyboard logger because it monitors for special key presses to let you control the level of 3D separation when in a game.
  booyakkasha   (further information)

Summary: Average user rating of DumaNT.sys: based on 4 votes with 4 user comments. One user thinks DumaNT.sys is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users think DumaNT.sys is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving DumaNT issues

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

DumaNT.sys [all]