Data recovery

 

                                                     DATA RECOVER 

* When files are stored on a hard drive, they are organized into sectors. Each sector is a small unit of a storage typically containing 512 bytes of data. The file system  keeps track of which sectors belong to  which files. When a file is created, the file When a file is created, the file system allocates a series of  sectors to store the data. When you delete a file, the file system marks the sector as a available for reuse, but the data isn't immediately wiped from the hard drive. This is why data recovery is possible  even after files have been deleted.      

* Data recovery software works by scanning the storage  a device for sectors that have been marked as     a  available but still contain traces of the deleted data. The software can piece together these sectors  tp reconstruct the deleted file. However, if the sectors have been overwritten by  new data, recovery   becomes much more difficult or even impossible.

*  When data needs to be overwritten on a hard drive, it means new new data is being written sectors   that were previously used to store other files. This process effectively replaces the old data with the new data. Once a sector has been overwritten, the original data is generally irretrievable, even with     advanced recovery methods.

* In summary, data recovery relies on the fact that when a file is deleted,  its data often remains on the storage device until it'overwritte This allows specialized  software toreconstruct and recover deleted files however, if you want to securely erase data and ensure it cannot be recovered, overwritten it with new data multiple times is recommended. This practice is particularly important when dealing with sensitive or confidently information.