hdd failure

I have one SSD where OS is stored, I have one 1TB hdd where games,files,programs are installed & i have one 512 gb hdd(6-7 years old) where mostly games were installed which is keep disappearing ,may be because it is dying. So what should i do? any other recommendation then please share.

My laptop's HDD shows error 303 which I know is corrupt HDD. But is it possible that some partitions may be fine and it can be used?

I have segate barrauda 7200.12 500GB internal hdd using it for past 3 years as second drive in parallel to another 250gb hdd my computer is on almost 15 hrs a day for downloading . due to hot temperature my second drive starts giving beep sounds after about 6 hrs so at that time I shut...

I have Hitachi HDS721010CLA332 1TB HDD which stopped working. It is under warranty and I got the RMA (Return Material Agreement), but the data in it is emotionally important to me. This is why I want to repair it/ get data recovered. Symptoms: 1. The motor does not rotates at all, there is no...