- When system shows “unable to boot” error
- Drives become inaccessible
- The major applications become unable to run or load data
- Data corruption due to virus attack
- Hard disk parts or component damage
- Damage due to physical factors like Water , Dust etc.
- Accidental reformation of partition
- Accidental data deletion
In all the above cases there is a need of hard drive recovery .The very first step to resolve the above mentioned issues is to first diagnose the potential of recovery. At a Data Recovery Service Center first determine whether the media is accessible to the lab equipment. If so, the first thing needed to be done is to create a raw image of the data . Storage Media like hard drive can be recovered by deep analysis.
If in case, the media is inaccessible then the hard drive recovery specialist examine its internal health to determine the extent of physical damage.
To resolve the issue, sometimes it demands to replace the hard drive components in a (class 100 clean room) totally dust free environment and using specialized hardware and software tools to create the raw image. Some components typically include electronics, read/write heads, head assemblies, magnets & drive motors failure makes hard drive inaccessible.
In case of logical recovery, raw image is used for examining the low-level data sectors and determining what things can fix the problem. File system structures are also needed to get access to the important data. Sometimes the existing file system structures are too damaged to recover hard drive data and it has to be extracted directly from one or more fragments of the raw image.
