First, you have to understand that there are two types of Hard Drive Technology.
The HDD has multiple platters or disks with equal amounts of multiple bars that read or write information on the disks. An electric motor spins the disks at conventionally 5400rpm or 7200 rpm. The HDD also has its own miniature motherboard that has its own software program.
So there lies the multiple ways a Hard Drive can fail...
When a sudden impact like a laptop falling to the ground, occurs, the mechanical feature of an electric motor on the center of the disks can fail. It can also break the arms that are responsible for reading and writing information on the disks. Another situation is when the software on the hard drive itself may be corrupted do to a failed firmware update.
Here are some mechanical failures that can occur due to:
1.) Liquid Damage
2.) Smoke Damage
3.) Heat Damage
4.) Firmware Update Failure
5.) Mechanical Failure of the Electric Motor
6.) Mechanical Failure of the Read and Write Bar
7.) Build up of debris like dust.
The SSD is like a giant USB stick; it has no moving parts like the HDD. It is generally faster than an HDD due to the fact that it doesn't require a mechanical motion to perform its read and write process, but instead it is utilizing the speed at which the electricity can can carry the signal from the stored location on the SSD's "NAND FLASH" to wherever it needs to go on the CPU. This allows the SSD the benefit of quieter operation, lower temperature output, no vibrations, longer life span, and virtually shock resistant.
Data Recovery for an HDD that has completely stop spinning can be done through a special niche data recovery market but can be very expensive, but at least the data itself may still be recoverable.
SSD's on the other hand cannot be attached to a mechanical device that can extract data since all its data is stored on chips. So in that sense, HDD is ideal for storing mission critical data, but for performance, the SSD reigns supreme.
Now that you understand the differences and the advantages and disadvantages of each technology, you can now get a better understanding on why your hard drive has failed.
We can recover data from virus infested hard drives, hard drives with minimal life left, and ones with severe OS corruption that a Windows base environment for data retrieval is not an option.
We do not recover data from physically damaged hard drives.
HARD DRIVE RECOVERY