Fundamental question: Do it yourself or specialist? Hard drives is technology generally to a sensitive and delicate pieces. There are a variety of sources of danger and damage that can draw themselves responsible for the failure of a hard drive: are responsible for a disk Headcrash vibration of hard disk drive vibration usually. Here, the write-read unit touches the rotating magnetic disks inside the hard disk. This physical contact usually damage the magnetic discs and write read unit. Also a Headcrash can be variable, so there is slight and serious Headcrash scenarios. A lighter Headcrash can the hard drive further work in a while, but you should keep always in mind that has any contact between write-read unit and magnetic discs to the consequence that microscopically small particles from the disc delete itself, but at some point between write-read unit, magnetic discs and this other new particles can trigger. Data recovery here speaks of a domino effect.
The hard disk but usually with a clicking or clicking noise and the fact that no longer can be accessed on the disk acknowledges a conventional Headcrash. Wear hard drives consist of a delicate mechanics, motors and more complicated electronics. All of these materials can in the course of time wear out and thus be affected in your functionality. These types of wear and tear can lead to a complete loss of your data. Regular control of the SMART error messages of your hard drive but not prevent wear, however, reduce the risk and hence the risk of data loss. Surge just after storms in connection with violent thunderstorms, the failure rate of disks rapidly increases.
The electronics of the hard disk is very sensitive on a voltage spike. This usually not only the external electronics of hard disk is damaged, but also the inner Electronics. Also there is also a Headcrash power interruption at one of running a hard drive.