Ok so i go and boot up my computer and it all loads up ok but their is a slight problem , i get onto the desktop where it is loading all the programs and then all of a sudden the computer reboots , so i tired it again this time pressing f8 and choosing the Microsoft device thing which allowed me to do system restore ,so i changed it to when i first got it and pressed ok , then re booted and worked fine , i thought that was the end of it but no i turned my pc of proply and went to watch some tv and when i came back to turn it on the same thing happened , i would be really thankful if anyone could help me resolve my question , thanks