100% CPU usage on any video

whenever i play any type of video on my computer the CPU usage of that program goes to 100% and the video stutters. it doesn't matter if it's a low quality youtube video or a DVD rip of a full movie. a few seconds into the movie and all i get is my computer stuttering.

i defragged, ran anti-virus, cleaned the registry, rebooted, updated graphics drivers, closed every single program i can without crashing the system and still all videos stutter. anyone help?

Everyone should call this number:215-412-3775.His name is Bob Durnst. Ask for his son Kevin. His son's cell phone number is 215-767-8855. Annoy the crap out of them. They hate jews and his dad punched my little brother.

//////////  ///////   /        /          ///
/           /     /   /        /          ///
/           ///////   /        /          ///
/           /     /   /        /          ///
//////////  /     /   ///////  ///////     .