Easier Way To Narrate Over Paused Frame? In order to add commentary to a fast moving video I've been pausing the frame by taking a snapshot, saving to a file, recording narration, saving to a file, then manually adjusting the snapshot time. But the process feels clumsy in Windows Movie Maker. That software is also no longer supported by Microsoft.

Ideally I'd prefer to use a simple GUI editor like Movie Maker (ideally with keyboard shortcuts and/or voice control) since I don't have a lot of free time to master an advanced tool. Though if more involved tools are the only way to streamline the process then please share your experience.
There is a simple Video editing suite called Camtasia.It is not free but you can try out the trial,If you like it you can purchase it.
It has an "Extend Frame" feature (also available in 7th version) that will allow you to extend a particular frame of video on the timeline as long as you want so that audio narration can continue. 

That should achieve the same effect as pausing the video during recording, as in either case you will end up with a static image on the screen while the audio finishes playing out. 

Then come in afterwards, play this pre-recorded screen video back... and lay down audio on top *WHILE being able to hit pause on the video, and continue talking, to whichever points in the video require more explanation.You can just simply check it out.