probably a faulty driver. I'd suggest you turn off the automatical restart feature by going to system properies -> Advanced tab -> click Settings under Startup and Recovery -> remove the tick at automatically restart. Then shutdown the computer again and you'll notice a blue screen with white letters. There you'll find information on what driver caused the problem and then you can search for the driver in the Device Manager. Find a update for it on the website of the manufactorer and that should get rid of the problem. If that doesn't help or if you have any more questions, reply then. I'll see what I can do.
got the error msg.. dunno what's causing the prob tho
i copied whole msg
A problem has been detected and windows has been shut down to prevent damage to your computer.
If this is the first time you've seen this Stop error screen, restart your computer. If this screen appears again, follow these steps:
Check to make sure any new hardware or software is properly installed. If this is a ne installation ask you hardware or software manufacturer for any windows updates you might need.
If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use Safe Mode to remove or disable components, restart your computer, press F8 to select Advvanced Startup Options, and then select Safe Mode.