From your output it looks like the video file is being locked by another process. Is the file being shared by torrent software, a video player which has it open, or another process? If your unsure what may be locking it, the easiest thing to do would be to restart your computer and try it again. In addition, maybe check the permissions of the file to ensure it is allowed to be read/write and is not protected.
In the meanwhile, If I get some spare time today I'll try to see if I can reproduce this on Windows 10. I doubt I'll find anything since this indeed looks like something on your end, but I'll double check just to make sure!