I have a laptop HP ProBook 455 G1. 50% of the time when laptop is writing(hdd led is blinking) I hear a clicking sound and it is definitely my hdd. It started a few months ago, but I wasn't worried since I hadn't noticed any problem while running and was thinking that the clicking sound were normal since it is a mechanical drive. But now the clicks are becoming more frequent and I found out 3 big missing files(around 12GB), they were from the gta 5 installation and I am almost 100% certain that I didn't delete them. The S.M.A.R.T. status is good. I am getting a bit worried about the hdd and I don't know what should I do since I don't have any ways of backing those files up(I have 200+GB worth of data). Should I get a new hdd or am I fine.
I hope that the hdd is fine since the cost in my country(Serbia) is high. 60$ for a 2.5" 500GB 5400RPM drive, that is the cheapest you could get.
I bought the laptop 2 years ago and I've been using it intensively.
The hdd in the laptop is: HGST HTS541075A9E680 - 698.64 GB(It should be 750GB, but it says 700GB)