On and Off In 5 seconds time.

I Plug the cord in it turns on by its self..? I downloaded a chinese movie program that a lot of my friends use (PPS) And Now, My Computer keeps turning On and off whenever i turn it on, It lasts for about 5 second then turns off i tried cleaning and the start button works just fine And i tried another outlet to plug it in, but i don't have enough time while it turns on to delete the program Completely. What Do i do? I would be greatful if anyone's tricks could help, Thank you!

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