Sorry to hear about the issue on your computer. When you said that it keeps on shutting down, do you mean its completely powering off? Usually overheating issue can cause your computer to shut down. There is a possibility that the fan is clog or not pushing enough air in/out of the unit. Try cleaning the fan and make sure the unit has plenty of space on the bottom and it's side so that it can vent properly. Please make sure the BIOS is up to date as well. It would also help if you can provide more details about the issue and the model name of your computer. Thanks.