There is a video recording screen. I usually convert this way and it suits me:
ffmpeg -i smth.flv -vcodec h264 -acodec copy -format avi smth.avi The problem is that the h264 codec is not included in the standard installation of Win10.
How to convert video with good quality preservation to the format that will be played by Windows Media Player on freshly installed Win10?
I tried this option, but the quality deteriorates very much:
ffmpeg.exe -i smth.flv -vcodec mpeg4 -acodec copy -format avi smth.avi 