temperature high

I recently bought an Acer Nitro 5 and I find the hdd temperatures unusual. When I'm watching any 1080p content on VLC the HDD temp is 39-40°C but during any other task or even idle it is 45-46°C. What should I do? *I don't have any ssd, just a 1TB HDD.

I've taken my macbook pro late 2011 to and apple center in order to rapair my damaged GPU. They did the repair, now my macbook is working but they might have done something wrong (or scammed me changing the heatsink for another), now my MB temperatures are of about 60-70°C when IDLE! (I used to...