What is NTIDrvr?

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

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

NTIDrvr.sys file information

The process known as NTI CD-ROM Filter Driver belongs to software Upper Class Filter Driver or Backup Manager (version V3) by NewTech Infosystems ( or NTI.

Description: NTIDrvr.sys is not essential for Windows and will often cause problems. The file NTIDrvr.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 6,144 bytes (78% of all occurrences), 6,912 bytes, 6,016 bytes or 14,848 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The application has no file description. The program is not visible. There is no detailed description of this service. The NTIDrvr.sys file is not a Windows system file. NTIDrvr.sys appears to be a compressed file. Therefore the technical security rating is 42% dangerous; however you should also read the user reviews.

Recommended: Identify NTIDrvr.sys related errors

Important: Some malware disguises itself as NTIDrvr.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the NTIDrvr.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

This is part of the NTI CD and DVD maker
You can't seem to get RID of it!
This is part of NTI Backup Now! However, it is left over even after the application is uninstalled.
  Frank   (further information)
Gehört definitiv zu NTI CD and DVD maker
can not delete SpyBot S&D says it's adware
Can cause S-L-O-W log-off issue
  Ambrose M  
it causes my pc to crash and shut down giving me the death blue screen every time i tried to open a simple process manager.
  acer aspire 3004LCi  
NTI Software products (NTIdrvr.sys) has stopped working properly.
  prasad khairnar  
its slowing down my computer and keeps and stops all together.

Rating chart

Summary: Average user rating of NTIDrvr.sys: based on 6 votes with 9 user comments. 2 users think NTIDrvr.sys is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous. 2 users suspect danger. 3 users don't grade NTIDrvr.sys ("not sure about it").

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Best practices for resolving NTIDrvr issues

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

NTIDrvr.sys [all]