text: how can i fix my pc.. it keeps on restarting..? i tried going to cmos and bios but to my dismay i cant find details there to help me solve my problem. when i turn on my pc it will go to the page where i have to chose what kind of mode i want to use. i tried chosing all the mode but after the partition it will restart again and again. help me pls.. do u have the original os disk?  if so use that. usually it probably has a repair option. if you put the disk in and nothing happens then set your bios to accept disk drive as primary boot.