so i wanna get a video onto windows movie maker. and i drag my video into the drag video here thing and a window pops up and says The file C:\Users\Carissa\Desktop\Pictures\100_1938.MOV cannot be imported because the codec required to play the file is not installed on your computer. If you have already tried to download and install the codec, close and restart Windows Movie Maker, and then try to import the file again.
I want to install the thing bu how? or what?