I have an update and it's not a good one...

So after giving up on Divinity 2, i thought to try another game. Shadow of War. Why not? i open it up and right at the first menu i get that same sound tearing/ white noise and i think "well f@ck my life". i ask my dad for help (did i mention i know nothing about computers other than pressing cntrl alt del?). We reinstall the antivirus and do a quick disk defrag, clear the register etc. Guess what? The damn thing works! (don't get your hopes up). Arx - the most demanding thing ever is running smooth! Heck, i played SoW the entire weekend. In the beginning, my pc was kinda sluggish but after a while, as if something had snapped into place, it ran that game like a charm. About a week later, i'm playing Wednesday & Thursday as well with no problems at all, finishing act 1 and all, and on Friday...bam the whole thing is back with a vengeance. i boot the game on and after several seconds the FPS stays at a marry 10-25ish by the looks of it (gets worse if i try to run around). The freaking menu is slow, mouse skips, and the sound crackles on occasion. I left the game alone since, while i'm at college anyway, and it still persists today (Wednesday). Bloody hell i so hoped to relieve some stress...searched google for hours to no particular avail. i'm just about ready to sacrifice one of my testicles.

This leads me to believe the Hard Drive is dying, as that is what killed my last PC. it served me well enough for 10 years (until 2011- ish. yeah...who needs new games when u got nfs carbon) until i convinced my parents to help me get my current build. Could the HDD be dying already?