Every time when I export a video (any format/size) o more than aprx. three and a half minute long my whole computer crashes. It's not the latest, but a fairly decent computer, Win10. It doesn' look like a lack of memory. Shorter videos export just fine. What could this be? The same happens when I use ShotCut video editor too. Several months ago, when t had Win 7, MS Movie Maker worked just fine. Any suggestions, please?