Ethernet streaming and occasional white noise on Windows

[AlexS]

I would not sort on CPU usage - I'd sort on the process name, since that way it's easier to compare before and after (as you rightly pointed out, CPU usage is volatalie). So, capture the processes before the white noise occurrence (make sure you click "Show Process from all Users"), then do what it usually takes for you to recreate the white noise, and capture the processes again. Hopefully, there will be a meaningful difference. Try to run as few programs as possible, not to muddle the picture with extraneous data.