Dell — Dell laptop not performing well at all

Address:

147001

I've purchased dell 5548 laptop 2-3 months ago, and it is not performing good.
it takes alot of time to start, sometimes it doesn't even start, i have got windows recovered once from the dealer from whom i've purchased this laptop.but there is no improvement.
this is so annoying i've spent 53000 and got this piece of .