System restarts while watching movie in VLC player

[sramakrishnancse]

Recently i have installed Windows XP service pack 3 operating system to my home PC. After that while playing video in VLC player, system is getting restart. Kindly help me to identify the solution.

 

[Lutfij]

Please pass on your full system's specs. How old is your current system and how old is the PSU? Does the issue crop up only when you're watching a movie? Speaking of watching, at what resolution do you watch the movies?