What is ntmarta.dll?

Ntmarta.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if ntmarta.dll is a Windows system file or if it belongs to an application that you can trust.

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Ntmarta.dll file information

The process known as Windows NT MARTA provider or Windows NT - MARTA-szolgáltató or Proveedor MARTA de Windows NT belongs to software Microsoft Windows Operating System or Sistema operativo Microsoft Windows or Microsoft Windows operációs rendszer by Microsoft (

Description: Ntmarta.dll is not essential for Windows and will often cause problems. The file ntmarta.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 118,784 bytes (33% of all occurrences), 121,856 bytes and 9 more variants. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program is not visible. The service has no detailed description. The file is not a Windows core file. It can change the behavior of other programs or manipulate other programs. The file is a trustworthy file from Microsoft. Therefore the technical security rating is 40% dangerous, however you should also read the user reviews.

Uninstalling this variant: You have the option to safely remove the program using the uninstall program of Microsoft Windows (Control Panel ⇒ Uninstall a Program) or search for help on the company's website.

Recommended: Identify ntmarta.dll related errors

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

Windows NT Multiple Access RouTing Authority (NTMARTA) Provider component supports the security Win32 API to manage the permissions of various objects, such as files, keys and services. This component provides the core support for security inheritance. This component is required by advapi32.dll, a core system dynamic-link library (DLL).
  James B   (further information)
Part of Windows kernel.
  Hemant M  
marta is a mass transit transportation service in atlanta, the likelyhood of Microsoft calling a file marta is absurd. My guess, locality based intrusionware but im guessing?

Summary: Average user rating of ntmarta.dll: based on 4 votes with 5 user comments. 2 users think ntmarta.dll is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks ntmarta.dll is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving ntmarta issues

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

ntmarta.dll [all]