I have a storage HDD backup in my pc and it contains lots of stuffs like movies, animes, and music and I'm so afraid that one day all of that files will be gone. In my question, how long does HDDs last? I'm using a WD 1TB Green 64mb AF, 2mos. old and I shutdown my PC 2-3 times a week. I just wanted to have some clue if I need to replace it a new one and transfer all files to avoid that file corruptions in HDD apocalypse.