Answer:
You have two options, replace the motherboard or buy a new laptop.
Discussed below:
Step-by-step explanation:
Laptops typically last on average about 5 years. It is good that you have upgraded software too. Realistically, when your motherboard fails, it is time for you to come with a new laptop. But it could not actually be a motherboard problem, first try to reformat your hard disk. If this doesn't work, then it would mean you'll need to get a new motherboard.
But with this, when you're wanting to replace motherboards, you're going to be need to replace almost everything else like the CPU, graphics card, RAM etc.
You have to proceed by checking your local IT shops to see if it's cheaper to replace motherboard or to purchase a whole new laptop.