[Serious] Windows Movie Maker Help

[T.J.]

Hey guys. I'm hoping somebody here can help me out. As some of you know I make videos. I use Windows Movie Maker 6 to edit them. I know that's a painfully outdated program, but I found a version that works with Windows 10 and for months now it worked just fine. Now all of a sudden it's lagging and freezing on video playback and I can't edit anything. I don't have the money to buy a better video editing program so I'm stuck with this one. I can't help but feel it's part of a bigger problem because my computer is running extremely slow. It has taken several minutes just to type up this message. It started yesterday.

Please help. I don't know what to do.