I have an HP Pavilion 15 that is about 3 years old. It has a 2.40 gigahertz Intel Core i5-4210U processor.
Twice today, my laptop has, without warning, shut off completely. The only way to bring it back up is to plug it in, despite the battery being at around 30% or 50%. I had updated my computer in between the two shutdowns. I am not sure if it has anything to do with Windows 8.1 or not. If I could get help on this, that would be great. Have a good day!