Most computer users have experienced major failure leading to data loss at least once in their lives. The fault may lie with defective hardware, such as a seriously scratched hard disk, or corrupted software, whether due to a particularly strong virus or worm, or a pre-existing software bug. Fortunately, data recovery is possible in most cases.
Computer data consists of files and sectors. The operating system reads the files, while the hard disk reads the sectors. A file system bridges these two computer data components. Think of a file system as a two-column table, at its simplest: one column has the file name, while the other has the sector numbers.
When you create a file, the file system searches for empty rows in the table and fills the columns with the necessary information. If you search for a file, the system looks up the file name and matches it with the hard disk’s sector numbers. When you delete a file, it doesn’t completely disappear; the file system simply marks the part of the table where that file used to be as “available”.
Assuming there’s nothing wrong with the computer, a file can be recovered by manipulating the file system to “read” a row and recover the file which occupied it. The disk may reuse the empty rows in the future, but this process takes time. If you don’t want files to be recovered for any reason, you can defragment your disk.
Otherwise, you need services for data recovery in Los Angeles for your critical files. Data loss usually occurs due to operating system failure; this may be solved by copying files to a separate disk, preferably a Live CD. If data loss occurs due to disk failure, the file system may be repaired, or, if the hard disk is physically damaged, the hardware is replaced. It’s possible to recover data without physical access to the affected drive; the drive can be linked to a computer in another location via Internet connection, and data recovery can take effect through certain software techniques.
However, don’t expect services for data recovery in Los Angeles to completely save corrupted files. This usually happens due to viruses, sector failure, or corrupted file systems. If the reason is a corrupt file system, file recovery is often possible by reading the file system information.
Before you cry over the files you may have lost forever, try to take advantage of companies that offer data recovery in Los Angeles first. Let them handle this delicate and difficult task for your peace of mind. For more information on data recovery, read tech-faq.com/how-to-recover-hard-drive-data.html.