You can use the right-click menu for a process and access the location of the associated application. Related: What is igfxTray.exe? Is it safe? Can I disable it? Is the Resume process a virus or ...
Windows always has a ton of background processes running, and if you're trying to clear up some CPU space and increase your performance, it's hard to know what you can and can't afford to disable.
I stopped relying on Task Manager after discovering the hidden Windows activity it ignores.
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