Games locking up

[Deputy_DDoS]

I recently got Dying light and every time I pick something up that's part of a mission, change menus to quick (with 30 seconds of pausing or opening inventory), just move or do to much the game freezes and I hear my HDD spin up to max. Also sound glitches during cut scenes; subtitles will show up but characters wont show an animation of talking and make no noise and occasionally normal environment noises will get stuck in a 1 second loop if a character speaks (not during cut scene). I opened task manager and during this time HDD was at 100% and so was CPU but during normal operation CPU is at about ~86%.

For reference my system is

2x4GB 1333mhz DDR3 Dual channel which i have tested and is working

i5 750 which i know isn't great but this is the first game i have had trouble with but its also the first new resource intensive game i have played with it (next most is probably MW3)

GTX 960 4GB at 900p so that's not it

WD Blue WD5000AAKS 500GB 7200 RPM which i am currently checking with WD's software

DP55WB Mother board