The genuine CNMNSST.exe file is a software component of Canon IJ Network Scanner Selector EX by Canon. The Canon IJ Network Scanner Selector EX is a tool that allows users to select the printer to be used for scanning or printing over a network. CNMNSST.exe runs the Canon IJ Network Scanner Selector EX. This is not a critical Windows component and can be removed if known to cause problems.
The Canon IJ Network Scanner Selector EX is usually installed with Canon printers and scanners. It is accessible through an icon located in the notification tray which the program creates upon installation. This program supports the Windows platform.
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.
CnMNSSt stands for Canon IJ MNetwork Scanner Selector 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 CNMNSST.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.
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Description: CNMNSST.exe is not essential for the Windows OS and causes relatively few problems. CNMNSST.exe is located in a subfolder of "C:\Program Files (x86)"—common is C:\Program Files (x86)\Canon\IJ Network Scanner Selector EX\.
Known file sizes on Windows 10/11/7 are 452,016 bytes (33% of all occurrences), 452,272 bytes and 6 more variants.
It is a Verisign signed file. CNMNSST.exe is not a Windows system file. The application starts when Windows starts (see Registry key: MACHINE\Run, TaskScheduler).
The program is not visible. It is certified by a trustworthy company.
Therefore the technical security rating is 40% dangerous, but you should also take into account the user reviews.
Uninstalling this variant:
If problems with CNMNSST.exe occur, you can also uninstall the associated program (Start > Control Panel > Uninstall a Program > Canon IJ Network Scanner Selector EX).
Important: Some malware camouflages itself as CNMNSST.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the CNMNSST.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.
Score
User Comments
Leave it alone. Canon Inc. software agent that allows your computer to receive scan from a network Canon scanner.
Summary: Average user rating of CNMNSST.exe:
based on 1 vote with 1 user comment.
One user thinks it's probably harmless.
Best practices for resolving CNMNSST issues
A clean and tidy computer is the key requirement for avoiding problems with CNMNSST. 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
To help you analyze the CNMNSST.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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
Score
User Comments
Summary: Average user rating of CNMNSST.exe: based on 1 vote with 1 user comment. One user thinks it's probably harmless.