ntrtscan.exe is a part of the Trend Micro Antivirus application. This process should not be removed to ensure that your system is secure.

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ntsd.exe is a process belonging to the Microsoft symbolic debugger that enables you to debug user-mode applications. This program is a non-essential process, but should not be terminated unless suspected to be causing problems.

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ntsys.exe is a process which is registered as a trojan. This Trojan allows attackers to access your computer from remote locations, stealing passwords, Internet banking and personal data. This process is a security risk and should be removed from your system.

ntvdm.exe is process that belongs to the Windows 16-bit Virtual Machine. It provides an environment for a 16-bit process to execute on a 32-bit platform. This program is important for the stable and secure running of your computer and should not be terminated.

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nu2menu.exe is a process associated with Nu2Menu Dynamic shell / menu from Nu2 Productions.

nutsrv4.exe is a process belonging to NuTCRACKER 4 which adds Linux functionalities to your Windows based operating system. This program is important for the stable and secure running of your computer and should not be terminated.

nv4_disp.dll is a module associated with NVIDIA Compatible Windows 2000 Display driver, Version 66.93 from NVIDIA Corporation.

nvappbar.exe is a process associated with NVIDIA nView Toolbar, Version 66.93 from NVIDIA Corporation.

nvcoas.exe is process relating to Norman Virus Control and is short for Norman Virus Control On Access Scanner. Module that handles On-Access file scanning ('background scanning'). This program is important for the stable and secure running of your computer and should not be terminated.

nvcod.dll is a module associated with NVIDIA Corporation from NVIDIA Corporation.

nvcodins.dll is a module associated with NVIDIA Corporation from NVIDIA Corporation.

nvcpl.dll is a library file for NVIDIA display adapter.

nvcpldaemon (NvQTwk.dll) is a module related to Nvidia graphics cards.