What is cnmnsst2.exe and how to fix cnmnsst2.exe ?

What is cnmnsst2.exe file ?


In some case cnmnsst2.exe can harm your computer. Therefore, please read below to decide for yourself whether the CNMNSST2.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.

Follow steps bellow to try fix the problem with cnmnsst2.exe

1. Use cleanmgr

To run the command cleanmgr :
Press Windows key + Q.
Enter cmd in search box , followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command cleanmgr and press Enter.

2. Use sfc /scannow

To run the command sfc /scannow :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command sfc /scannow and press Enter.

3. uninstalling programs :

To uninstall unnecessary programs :
Open the Start menu (Press Windows key + X) .
Click the first menu item Programs and Features.
Search unnecessary programs in the list of installed programs, .
Click the software you want to uninstall.

4. using msconfig

To run the command msconfig :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command msconfig and press Enter.

5. Automatic Update

To run the command wuauclt /ShowWindowsUpdate:
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command wuauclt /ShowWindowsUpdate and press Enter.

6. Use resmon command

To run the command resmon :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command resmon and press Enter.

7. use DISM.exe

To run the command DISM.exe /Online /Cleanup-image /Restorehealth :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command DISM.exe /Online /Cleanup-image /Restorehealth and press Enter.


cnmnsst2.exe descriptions


CNMNSST2.exe is not essential for the Windows OS and causes relatively few problems. CNMNSST2.exe is located in a subfolder of “C:Program Files (x86)”—usually C:Program Files (x86)CanonIJ Network Scanner Selector EX2.;Known file sizes on Windows 10/8/7/XP are 270,912 bytes (66% of all occurrences) or 279,240 bytes.;CNMNSST2.exe is a Verisign signed file. CNMNSST2.exe is certified by a trustworthy company. The CNMNSST2.exe file is not a Windows system file. The program is not visible. The program is loaded during the Windows boot process (see Registry key: MACHINERun).;Therefore the technical security rating is 28% dangerous.;Uninstalling this variant;If problems with CNMNSST2.exe come up, you can also safely remove the program using the uninstall program of Canon IJ Network Scanner Selector EX2 (Control Panel ⇒ Uninstall a Program).