calmain.exe - What is calmain.exe?

What is calmain.exe doing on my computer?

calmain.exe is a process installed alongside Canon digital camera software and provides additional configuration options for these devices.
This program is a non-essential process, but should not be terminated unless suspected to be causing problems.
Non-system processes like calmain.exe originate from software you installed on your system. Since most applications store data on your hard disk and in your system's registry, it is likely that your computer has suffered fragmentation and accumulated invalid entries which can affect your PC's performance.

In Windows Task Manager, you can see what CPU, memory, disk and network utilization is causing the Canon Camera Access Library process. To access the Task Manager, hold down the Ctrl + Shift + Esc keys at the same time. These three buttons are located on the far left of your keyboard.

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The calmain.exe is an executable file on your computer's hard drive. This file contains machine code. If you start the software Canon Multimedia on your PC, the commands contained in calmain.exe will be executed on your PC. For this purpose, the file is loaded into the main memory (RAM) and runs there as a Canon Camera Access Library process (also called a task).

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Is calmain.exe harmful?

This process is considered safe. It is unlikely to pose any harm to your system. The calmain.exe file should be located in the folder C:\Program Files\Canon\CAL. Otherwise it could be a Trojan.

calmain.exe is a safe process

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Can I stop or remove calmain.exe?

Many non-system processes that are running can be stopped because they are not involved in running your operating system. calmain.exe is used by 'Canon Multimedia'. This is an application created by 'Canon'.

If you no longer use Canon Multimedia, you can permanently remove this software and thus calmain.exe from your PC. To do this, press the Windows key + R at the same time and then type 'appwiz.cpl'. Then find Canon Multimedia in the list of installed programs and uninstall this application.

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Is calmain.exe CPU intensive?

This process is not considered CPU intensive. However, running too many processes on your system may affect your PC’s performance. To reduce system overload, you can use the Microsoft System Configuration Utility (MSConfig) or the Windows Task Manager to manually find and disable processes that launch upon start-up.

Use the Windows Resource Monitor to find out which processes and applications write/read the most on the hard drive, send the most data to the Internet, or use the most memory. To access the Resource Monitor, press the key combination Windows key + R and then enter 'resmon'.

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Why is calmain.exe giving me errors?

Most calmain issues are caused by the application executing the process. The surest way to fix these errors is to update or uninstall this application. Therefore, please search the Canon website for the latest Canon Multimedia update.

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