
A lot of people has the misconception that since desktops are stationary on your desk all the time, the chances of your disk failing is slim. Unfortunately, this is not the case.
One should understand that hard disk drives do not last forever.
They are delicate mechanical devices made up of platters, spindle motor, read write head assembly sealed within the dust-free chamber.
Hard disk drives are precision instruments, so they need to be handled with care.
A sudden power surge, mechanical failure due to wear and tear or an inadvertent drop or impact may result in data loss if you do not have a proper data backup
Human error is also one of the factors that could result in data loss. For instance, accidental deletion of files or re-formatting of disk.