Are there any video editors/makers for windows?

I record videos on my nikon camera but windows movie maker does not support MOV files…

There are dozens, you just have to google them.

I don't do much of anything with video editing, but one free program I use is vdub (virtual dub)
If you're willing to fork out enough cash, or use trial software, try looking up either Sony Vegas Pro or Adobe After-Effects. Both are very professional, but expensive editing tools that are very powerful.

Convert it to.mp4 file (if you want to edit it with window movie maker)

Well here is a question from a few days back that i posted an answer on, don't feel like relinking everything lol

thats everything you could possibly need for editing a video, its all free software.

Now which ones support.mov? Well i don't rly remember lol
you could convert it as the other person said, but just remember every time you convert a video, you lose quality and are unable to get it back.