Computer hard drive is one the most important part of a computer. All important files including users data like photos, videos, documents such as Microsoft Word docx files, PowerPoint Presentation ppt files, Microsoft Excel files, pdf, folders, emails, programs data, etc are all stored on computer hard drive. So a hard drive data loss will be a big problem.
In case of hard disk crash or similar tragedies, there is a risk that many important files and documents get lost and hence becomes a crucial task. There are many reasons where a crash can be quite detrimental to the companies as it might carry important information pertaining to business.
Probable reasons of deletion of files from computer hard drive
Following are the common reasons which may cause files on computer hard drive been deleted:
* Computer blue screen or crashed and then can not boot up
* Accidentally deleted important files from computer hard drive
* Hard disk is corrupted
* Accident format computer hard drive
* Computer reset to factory settings which result in all personal data on computer hard drive been deleted
What happens when files are deleted or computer hard drive is formatted
The actual files data may store anywhere on computer hard drive, and there’s a file table which maintain the address of each file, so when user needs to read a file, the computer operation system first read the file table to get the address of file’s actual data. Then the actual data is read.
When files are deleted from computer hard drive, the computer operation system actually does not go to erase the actual data. Instead, it only go to file data and delete the file address entry. By doing this, the space occupied by file’s data is now free as no file in file table is pointing that address, so the address can be used for any new file. Moreover, the delete process will be fast as there’s no need to go to erase the actual data from computer hard disk.
Since the file’s actual data is not erased, there’s a chance to recover those data if we can read the hard disk bit and bit and then collect all pieces of data and form them into a file.
Hard drive crash or format will be similar to above, file table could be corrupted which may result in hard disk crash. When hard disk is formatted, all file’s data are still there, only all entries in file table is deleted.
Why switching to Professional services make sense
In case of Hard drive failures, there are few people which would go on trying their hands through numerous tutorials and directions available. Also there is a list of tools available online to fix minor issues.
But these methods pose threat to your information as a simple mistake can lead to the loss of data completely and would make the retrieval impossible. Hence it is always recommended to go for professional services when it comes to hard disk recovery.