What is nutsrv4.exe?

The genuine nutsrv4.exe file is a software component of MKS Toolkit by PTC.
The MKS Toolkit is an environment for porting Linux and Unix software to the Microsoft Windows platform. Nutsrv4.exe runs the MKS Toolkit program. This is not an essential Windows process and can be disabled if known to create problems. The MKS Toolkit (originally known as NuTCRACKER) was first released in 1994 for the Windows 95 and NT platforms. The NutCRACKER product suite became the MKS Toolkit in 1999 after Datafocus (the company that created NuTCRACKER) was acquired by MKS. The MKS Toolkit currently features multiple command shell environments, traditional Unix and Windows specific commands, connectivity for clients and servers, porting APIs, etc. PTC (originally known as the Parametric Technology Corporation) is an American company that develops and provides services in computer software. PTC was founded in 1985 by Samuel Geisberg and Mike Payne and pioneered the computer-aided design (CAD) modelling software sector. The company was also the first to launch an Internet-based service for product lifecycle management (PLM). PTC is currently based in Needham, Massachusetts, USA.

NuTSrv4 stands for NuTCRACKER Service (version 4.0)

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the nutsrv4.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for nutsrv4.exe related errors

Nutsrv4.exe file information

Windows Task Manager with nutsrv4
Nutsrv4.exe process in Windows Task Manager

The process known as NuTCRACKER Service belongs to software NuTCRACKER (version 4) or MKS Platform Components (version 8.x) by DataFocus or MKS Software.

Description: Nutsrv4.exe is not essential for the Windows OS and causes relatively few problems. The file nutsrv4.exe is located in the C:\Windows\System32 folder or sometimes in a subfolder of C:\Windows. Known file sizes on Windows 10/8/7/XP are 277,272 bytes (73% of all occurrences), 180,496 bytes and 6 more variants. 
The program is not visible. Nutsrv4.exe is not a Windows core file. The nutsrv4.exe file is located in the Windows folder, but it is not a Windows core file. Nutsrv4.exe is able to hide itself and monitor applications. Therefore the technical security rating is 48% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to do the following:
  1) completely remove MKS Platform Components 9.x or Rational Rose Enterprise (Control Panel ⇒ Uninstall a Program)
  2) get help from the software vendor Mkssoftware
  3) update the program to the latest version.

Recommended: Identify nutsrv4.exe related errors

Important: Some malware disguises itself as nutsrv4.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the nutsrv4.exe 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

Is installed with Rational Rose
  Johnny   (further information)
Component of Rational Robot
This file comes out with the Rational Rose installation.
Installed by Rational Rose. However, on my computer it hung at 99%CPU first time around. Seams to work fine after re-installing.
very likely part of XVision as well
Hopefully from one of the components of Rational Suite, likely Rose
Part of MKS for Developers
I found it on my computer, and i have no idea how it got there.
Believed to be part of Creo CAD software.
It was running after I installed CREO CAD
  Pranava Swaroopa  

Rating chart

Summary: Average user rating of nutsrv4.exe: based on 13 votes with 10 user comments. 6 users think nutsrv4.exe is essential for Windows or an installed application. 4 users think it's probably harmless. 2 users think it's neither essential nor dangerous. One user suspects danger. One user is not sure about it.

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Best practices for resolving nutsrv4 issues

A clean and tidy computer is the key requirement for avoiding problems with nutsrv4. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the nutsrv4.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

nutsrv4.exe [all]