1999 Buick Regal windows

Ok. My windows all stopped working on me at the same time. I put them down and they would not go back up. I waited a few hours and they went back up. I went out thinking it was a one time thing. Put them down and and they went out. After I made my stop I put the two front windows half way but the rear would not go down. And the front two would not go back up. The next day (Which was/is today) They went back. I assume its a worn fuse. And even if it is a fuse I don't know which fuse it is. I would love some help.