Question Bad HDD or PSU

Sep 1, 2018
4
0
10
In the past few weeks, every time I power on my PC I have to turn it off then on again because the first time it gets stuck on the Asus screen.

Now, it just stops at the windows loading screen(sometimes Automatic repair comes on but it stops at the blue screen error).

I removed the HDD from my PC now it boots perfectly fine.

Is it my HDD thats bad or my PSU? (Sorry if this is a stupid question, this is my first time encountering this issue)

Components:
PSU - Silverstone 750W
HDD - Seagate 3TB
SSD - Samsung Evo840
Mobo - Asus Z370F