I've been interested in how long an HDD will actually last if taken care of. The most common answer is "HDDs can die at any time.." but I've never had a single one die/break/lose data or anything similar. My current desktop has been running with the same HDD since 2005-2006 and is running most of the day though I have it set to hibernation at night. Just replaced my laptop HDD with an SSD and turned it into an external, no problems with that(2-3 years old). Some people say they last around 3 years up to 5 if you're lucky?