Hard disk drives rotate at a very high speed, 3600 to 15000 RPM. This is a very high speed and in reality it would cause a real crash. Data stored for months, years or even decades can be at great stack if the crash sign are not adhered to.
Have you ever come across this sign on your computer before, GPF? It stands for general protection fault error. It is more like an order forcing you to reboot your computer to complete utter hardware meltdown that can not be recovered from at all. This is more like a forced crash.
How about electric surges? They come without warning, it happens that your hard drive can be affect more so you motherboard. This can result to an instance loss of as you might not have saved your work at all. Electric surges can also damage your drive to a point where data recovery becomes a project rather than an easy task. The power surge can not only be initiated from outside the working parameters but also within. Through human error, stumbling on power cables can cause disconnection of computer power cables as well. In a point where main power switches are turned on without warning after a power loss can cause a huge power up surge causing faults on the circuit boards of the system.
Viruses spare no one in the web. They flock in using precious bandwidth and affecting all the system resources. Hard disk with information can be prime targets as data can be erased as they execute themselves. More so logging of non authorized users on the system can also cause deletion of files or even formatting of your hard disk
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I accidentally rocked my computer a little, but not hard enough for gravity to pull it to the ground. The hard drive is perpendicular to the axis I rocked it on and i'm curious if I should be backing up my data this very moment. How likely would it be to crash?
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