I have already have experience using a process explorer. Since your application is new, it is possible that it might have defects.
I am passionate about Software Testing/Website Testing and love finding defects. I am also a professional software tester with 11 years of experience.
Does your tool provide a graphical display of the CPU spikes? If yes, then we can change monitor resolutions and see how they're displaying.
Also, what other functionality does your tool provide? I can test out the other functionality too.
Here are a few tests for your tool that I can think of immediately!
* Having special characters in the process name - see how it shows up in your tool
* Use a tool that simulates CPU consumption. Take the CPU to the extremes. See how your tool monitors.
* Consume CPU on different cores and see whether it's reflected properly
* Keep the tool inside lots of subfolders and then run it. See if it works properly.
* Have the process running inside several subfolders and see how it gets detected.
I can add more tests if after I have a look at the tool.
I have a windows 10 machine so I could test on that.
As for a Windows 7 machine, I could test it on a VM on my laptop. That way we can cover both of the OSes. Let me know if that works for you.