Windows 10 x64
I was running ffmpeg in the background while playing sc2 and started getting laggy so I tried suspending the ffmpeg process. After I'd exited the game I right-clicked ffmpeg but couldn't find any way to resume. So as not to lose the process I started MPC-HC and suspended that process to experiment with but couldn't find any way of resuming that either.
I googled and learned of Process Explorer, downloaded it, shut down process lasso and tried resuming ffmpeg with Process Explorer but ffmpeg just kept suspending.
I opened up Process Lasso again, looked at ffmpeg and a checkmark had appeared on the suspend process option. I pressed the checkmark and resumed THEM, however, there was still no checkmark in MPC-HC and ultimately I was forced to terminate the MPC-HC process just to get rid of it.
I've tried suspending MPC-HC again and the same thing has happened. I'm not willing to experiment with ffmpeg until the processing is complete.