Around Christmas eve my computer began to shut off on its own, at random without warning. It proceeded to do so steadily at least once almost every day until tonight when it shut down as I was playing a game. I turned off the power from the back of the computer for about 10 seconds and flipped the switch again to begin the reboot process, it made it to the boot screen before it shut down again, it repeated this process for another 3-4 times before I cut the power completely. Now it will not even power up anymore. I'm a total amateur when it comes to computers and honestly don't know what hardware I have other than possibly a 1060ti and either an i5 or i7 processor. I don't even know where to begin so any help would be welcome, and thanks in advance.