

The one in the back(top left corner, when facing the screen) it the one that produces the noise. I have 2 drives, C: and D:, I also have a small solid state drive if that is what you mean by a second hard drive. The tests were all successful and took over 4hours to complete, no errors what so ever. I'd rather check online for a solution first before bringing it to a computer repair shop which, i'm willing to do as a last resort. I have partially opened up my laptop and it looks in order to me with the dust at a minimum. I would like to hear your thoughts on this, a solution you might of have encountered or any explanation of the cause also explain any costs. This solution I came across by accident I turned my laptop sideways when the sound occurs and the sound stops until I put the laptop upright again(Laptop is open). The main thing I do when the sound occurs is I close the laptop lid which puts it in sleep mode and turns off the hard drive, silencing it for the time being. I have found a few small solutions to this problem. I suspect that there is a switch, flap or wire that is not attached properly and when moved it triggers the hard drive. It also does this when the laptop is closed, and in "sleep mode" the slightest bump lets it off like a baby. My laptop for some reason ,when it is moved or bumped, even the slightest, start to "rev" and the hard drive roars it does this for five minutes or so. This situation is something I have never heard of before.

This is not what confuses and annoys me the most, it is the sound reoccurring again. What puzzles me, and leads me to believe it is the hard drive, is the fact my computer get unreasonably hot when the noise occurs it never used to do this before. Even after the computer has booted up, this noise continues for another minute or two before it stops, then my laptop becomes quiet. This noise sounds like the computer is working as hard as it possibly can, almost making a grinding noise. When I start up my computer the loud noise begins almost immediately after startup. I suspect the fan or the hard drive is the culprit but I have convinced myself it is the hard drive. Recently my computer has been making a really loud noise and it seems it is working a lot harder than it needs to be. I have owned my hp envy 17 laptop for almost 2 years now.
