What is CNMNSUT.exe?

The genuine CNMNSUT.exe file is a software component of Canon IJ Network Scan Utility by Canon.
The Canon IJ Network Scan Utility detects installed printers located on a computer network. CNMNSUT.exe runs the Canon IJ Network Scan Utility. This is not a critical Windows component and can be removed if known to cause problems. The Canon IJ Network Scan Utility is used to manage and configure printers and the network settings of Canon IJ network printers. This program is often installed with Canon printers. The program modifies the system registry so that it is automatically run at system startup. It supports the Windows and Mac OSX platforms. Canon Inc. is a Japanese corporation that designs and manufactures imaging and optical products such as camcorders, cameras, steppers, photocopiers, computer printers, as well as medical equipment. Canon was founded in 1937 as Precision Optical Instruments Laboratory by Takeshi Mitarai, Goro Yoshida, Saburo Uchida and Takeo Maeda. The company is currently worth over ¥4 trillion and employs over 190,000 people and has offices on all continents except Antarctica. Canon is headquartered in Tokyo, Japan.

CnMNSUt stands for Canon IJ M Network Scan Utility

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 CNMNSUT.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 CNMNSUT.exe related errors

CNMNSUT.exe file information

Windows Task Manager with CNMNSUT
CNMNSUT.exe process in Windows Task Manager

The process known as Canon IJ Network Scan Utility belongs to software Canon IJ Network Scan Utility for Microsoft Windows by CANON INC (

Description: CNMNSUT.exe is not essential for the Windows OS and causes relatively few problems. CNMNSUT.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 206,240 bytes (36% of all occurrences), 136,544 bytes and 4 more variants. 
CNMNSUT.exe is certified by a trustworthy company. The CNMNSUT.exe file is not a Windows system file. The CNMNSUT.exe file is a Verisign signed file. The process starts when Windows starts (see Registry key: MACHINE\Run). The program is not visible. Therefore the technical security rating is 32% dangerous.

Uninstalling this variant: If any problems with Canon IJ Network Scan Utility occur, you can remove the entire program using Windows Control Panel.

Recommended: Identify CNMNSUT.exe related errors

Important: Some malware camouflages itself as CNMNSUT.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the CNMNSUT.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.


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Best practices for resolving CNMNSUT issues

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

CNMNSUT.exe [all]