Question Disk read error occurred.

[tadic_josip]

2-3 days ago, when I press the start button, my computer wont start, it comes to a black screen and it says a disk error occurred, press ctr alt del to restart, i press the buttons and it is the same thing over and over again. Sometimes this comes up

https://imgur.com/a/PVIOKQr

View: http://imgur.com/gallery/PVIOKQr

In the morning it started with no problems, but now it has this error again.
What should I do?

 

[rgd1101]

recheck the hdd power and data cable. try another set of cable/port
replace the hdd

 

[tadic_josip]

recheck the hdd power and data cable. try another set of cable/port
replace the hdd

My system is on that hdd?