Ctfmon is the Microsoft process that controls Alternative User Input and the Office Language bar. It’s how you can control the computer via speech or a pen tablet, or using the onscreen keyboard inputs for asian languages.
If you are using any of the above, you should leave it enabled. For everybody else, disable this annoying service.
Unsure about which process is which? Certain processes looking suspicious?
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The analysis includes all running processes, including services. The tool will tell you what they are and which of your resources they're using, even how much of you internet connection they're using.
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