This laptop is very slim and lightweight but that is what I think is causing the issue of noise.  This machine makes too much noise.  I am unhappy about that as I seldom run more than one program at the same time.  It supposedly has Coolsense but if you keep the thing on your lap, it overheats and the fans start whirring.  Why call it a laptop if you can't use it that way?  And if you are charging the thing never stops at all.  I've had other HP without Coolsense which were less noisy.  Also, I ordered the gold only to be sent the silver.2nd review..I will keep this laptop because, hopefully, I figured out why it was so noisy.  Please know I am not computer savvy but once I got One Drive installed, it hasn't hummed, buzzed or made not one peep of sound and I had it on my lap.  I hope this helps those of you who also found it noisy as I promise, once I did that it's perfectI will not be returning this laptop.