My laptop doesn't turn on at all- Dell Inspiron 15 laptop. Need help?

I just bought a new laptop for me which is from Dell company. The laptop is reasonable and as per it's specifications i like this laptop and finally i bought up this new laptop at this diwali. The laptop was working well as it was a best option for me to play games and watch movies. But from a month ago it has started giving me a problem which i think is hassling me a lot.

The problem is when you plug the AC adapter into the laptop, there are no lights turning on at all. When you push on the power button, nothing happens. The laptop appears to be completely dead, makes no sounds, no indications of life.

Please no it is not turning on. what should i do and what should i do not.

I think the AC adapter failed and the battery discharged completely. First of all, test the AC adapter. If it’s dead, replace the adapter.