I'm getting an error when trying to save in HD on windows movie maker. (Error:0x87160139) My files are there and I have formats of .mov and .mp4 . Whenever I preview my video in WLMM, the files are fine, it's all there. It's when I try to save it that it stops at a percentage then has a yellow triangle with an exclamation point. This is for a school English project, I've been up all night trying to fix this, only to have it crash multiple times.