An Operating System (OS) crash is different from a hard drive crash. All types of OS crashes are logical failures. When your hard drive fails to function properly, it is generally a physical failure. Physical failures will cause the hard drive to produce a clicking or whirring sound at the startup and you may fail to boot successfully. Logical drive failures may also result in boot failures. A logical failure may be caused by a virus program, system driver conflict, software malfunction, or human errors.
Logical drive failures mean that your hard drive is healthy, but you cannot access your files and other information stored on the drive. Though the system BIOS is able to recognize the drive at startup, you will see errors stating that you need to format your drive or there is no free space available on the drive. You may even fail to boot into the operating system and receive a ‘no boot-up disk available’ message. Logical errors may show up as a result of physical hardware errors. However, you can easily distinguish between them for the fact that they are quite systematic in their way of expressing the underlying issue.
Logical failures can prove to be one of the easiest data recovery puzzles or may give you nightmare recovery experiences. In such cases, it is recommended not to image or clone your hard drive, or use any system tools like CHKDSK or SCANDISK. These attempts will possibly make the problems worse and render your recoverable data unrecoverable. The effort and time required for data recovery in such situations depend on the cause of failure. Listed below are the common reasons for logical drive failures:
- Master Boot Record (MBR) Corruption:
MBR contains real mode machine language instructions that are executed at the startup to load the actual operating system. The boot code in MBR may easily get damaged due to infection by viruses or worms, power surges, abrupt system shutdown, and hardware malfunction. This would lead to boot failure and data loss.
- Operating System Crash:
This type of failure is caused by bugs in the operating system or any other issue that damages the MBR or boot sectors.
- Accidental Deletion of Data:
This could be the most annoying thing for you. Accidental data deletion results from mere carelessness or negligence.
- File System Corruption:
The structure of the file system on your drive may become corrupt due to disgraceful system shutdowns, viruses, and other malware.
- Disk Repair Tools:
The chances of recovery get worse when you try to run any disk repair tool on your damaged hard drive.
- Reformatted or repartitioned Drives:
Any case of reformatting or repartitioning hard drives will incur data loss. Formatting erases the drive while repartitioning may delete existing partitions to add new ones.
In all such instances of logical drive failures, you can successfully retrieve your lost data intact by using professional hard drive recovery software. These tools scan the affected storage media through non-destructive algorithms and facilitate complete recovery of lost information.
About The Author:
Abhayjeet is an enthusiastic writer and full time blogger who usually writes on hard drive data recovery techniques and steps to protect your confidential data from hard drive.