Wierd problem with Movie Maker, Can't save files to my C: disk

I've tried it all.
I gave up the project and just tried to make a movie from just a single picture i draw in mspaint, but still no success.

Then I am about to finish the movie and pressing the final button to start to render it I just get a message that says "Windows Movie Maker cannot save the movie to the specified location. Verify that the original source files used in your movie are still available, that the saving location is still available, and that there is enough free desk space available, and then try again"

I use Windows Vista Home 32bits.

Hope you have any idea of what the problem could be, Thank you alot.

Regards, Mattias.

 

I made a folder on the c disk called movies. But still no success.

I got the version 2.6 of movie maker.
and i got windows vista home basic.

Someone told me that movie maker isn't compatible with vista home basic, know if that's true? Feels like I've tried everything now to get that movie saved.