My PC randomly powers off and will not start up again for around 30-40 minutes, then it starts without a problem . It does not give any error while using it. And also it happened 4 times in the last 2 week. And also 4 of them happened on Saturday. 2 of them last Saturday and the other 2 this Saturday. I checked Windows log(I'm using Win10) it showed "kernel power error". Hope there is a solution for this.