The most common data recovery scenario involves an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive. This can be easily accomplished using a Live CD or DVD by booting directly from a ROM instead of the corrupted drive in question. Many Live CDs or DVDs provide a means to mount the system drive and backup drives or removable media, and to move the files from the system drive to the backup media with a file manager or optical disc authoring software. Such cases can often be mitigated by disk partitioning and consistently storing valuable data files (or copies of them) on a different partition from the replaceable OS system files.
Another scenario involves a drive-level failure, such as a compromised file system or drive partition, or a hard disk drive failure. In any of these cases, the data is not easily read from the media devices. Depending on the situation, solutions involve repairing the logical file system, partition table or master boot record, or updating the firmware or drive recovery techniques ranging from software-based recovery of corrupted data, hardware- and software-based recovery of damaged service areas (also known as the hard disk drive’s “firmware”), to hardware replacement on a physically damaged drive which allows for extraction of data to a new drive. If a drive recovery is necessary, the drive itself has typically failed permanently, and the focus is rather on a one-time recovery, salvaging whatever data can be read. Data Recovery companies
In a third scenario, files have been accidentally “deleted” from a storage medium by the users. Typically, the contents of deleted files are not removed immediately from the physical drive; instead, references to them in the directory structure are removed, and thereafter space the deleted data occupy is made available for later data overwriting. In the mind of end users, deleted files cannot be discoverable through a standard file manager, but the deleted data still technically exists on the physical drive. In the meantime, the original file contents remain, often in a number of disconnected fragments, and may be recoverable if not overwritten by other data files.
The term “data recovery” is also used in the context of forensic applications or espionage, where data which have been encrypted or hidden, rather than damaged, are recovered. Sometimes data present in the computer gets encrypted or hidden due to reasons like virus attack which can only be recovered by some computer forensic experts.
Recovery experts do not always need to have physical access to the damaged hardware. When the lost data can be recovered by software techniques, they can often perform the recovery using remote access software over the Internet, LAN or other connection to the physical location of the damaged media. The process is essentially no different from what the end user could perform by themselves.
Remote recovery requires a stable connection with an adequate bandwidth. However, it is not applicable where access to the hardware is required, as in cases of physical damage.
Four phases of data recovery
Usually, there are four phases when it comes to successful data recovery, though that can vary depending on the type of data corruption and recovery required.
Phase 1 Repair the hard disk driveThe hard drive is repaired in order to get it running in some form, or at least in a state suitable for reading the data from it. For example, if heads are bad they need to be changed; if the PCB is faulty then it needs to be fixed or replaced; if the spindle motor is bad the platters and heads should be moved to a new drive.
Phase 2 Image the drive to a new drive or a disk image fileWhen a hard disk drive fails, the importance of getting the data off the drive is the top priority. The longer a faulty drive is used, the more likely further data loss is to occur. Creating an image of the drive will ensure that there is a secondary copy of the data on another device, on which it is safe to perform testing and recovery procedures without harming the source.
Phase 3 Logical recovery of files, partition, MBR and filesystem structuresAfter the drive has been cloned to a new drive, it is suitable to attempt the retrieval of lost data. If the drive has failed logically, there are a number of reasons for that. Using the clone it may be possible to repair the partition table or master boot record (MBR) in order to read the file system’s data structure and retrieve stored data.
Phase 4 Repair damaged files that were retrievedData damage can be caused when, for example, a file is written to a sector on the drive that has been damaged. This is the most common cause in a failing drive, meaning that data needs to be reconstructed to become readable. Corrupted documents can be recovered by several software methods or by manually reconstructing the document using a hex editor.
The Windows operating system can be reinstalled on a computer that is already licensed for it. The reinstallation can be done by downloading the operating system or by using a “restore disk” provided by the computer manufacturer. Eric Lundgren was fined and sentenced to U.S. federal prison in April 2018 for producing 28,000 restore disks and intending to distribute them for about 25 cents each as a convenience to computer repair shops.
List of datarecovery software
Data recovery cannot always be done on a running system. As a result, a boot disk, live CD, live USB, or any other type of live distro contains a minimal operating system.
BartPE: a lightweight variant of Microsoft Windows XP or Windows Server 2003 32-bit operating systems, similar to a Windows Preinstallation Environment, which can be run from a live CD or live USB drive. Discontinued.
Finnix: a Debian-based Live CD with a focus on being small and fast, useful for computer and data rescue
This is a List of The best Data Recovery companies in Kenya
East Africa Recovery Experts, Westlands
Centro House, 2nd Floor Woodvale Lane, Nairobi East Africa Recovery Experts Ltd provides state-of-the-art Data Recovery Services in Kenya
East African Data Handlers, Nairobi
3rd Floor Chiromo Court, Chiromo Road, Nairobi City East African Data Handlers is the leading data recovery solutions provider in Africa. Data Recovery companies
Scratchx Data Recovery Services, Nairobi
Nairobi ScratchX Data Recovery Services provides data recovery, hard drive repair, RAID repair, computer forensics, data backup, cloud services & data consultancy.
Nairobi data recovery, Nairobi
Tom mboya Khoja stage Embu centre building
Lifeguard Data Recovery Kenya, Muthaiga
Eaton Place, 2nd Floor, United Nations Cresent, P.O Box 63946-00619, Muthaiga, Nairobi. Lifeguard is U.A.E most renowned Data Recovery service provider offering Physical & Logical fast Data
Data Recovery Nairobi, Nairobi
Bemuda Plaza Ngong Road, Nairobi Data Recovery companies
Data and Logistics Solution, Nairobi
Mfangano trade centre
No.99, Chavakali, Mbale, Kenya 50300, Mbale, Nairobi City
Viscom Data, Nairobi
Millennium Instrumentation, Nairobi
Caxton House, Suite 21B, 3rd Floor, Nairobi
Astute Tech Solutions, Nairobi
Business Centre, Upper Savanna, Outer Ring Road, Nairobi
Evail Limited, Nairobi
Evail is a Nairobi based business continuity, cyber security, cloud and data center solutions provider for mid-sized to corporate enterprises who want to secure their data, reliably access it in a timely manner and advance with technology as their businesses continue to rapidly grow. Our growing networks allow us to serve clients not only in Nairobi, but also the entire country and beyond boarders.
International Life Hse 6th Floor, Mama Ngina Street Nairobi, Kenya
+254 20 2220685 +254 20 3585585 +254 700 44 51 51
International Life House 6th Floor, Mama Ngina Street, Nairobi City
Achi Systems History
Achi Systems was started in 2007 as a Small and Medium Enterprises ICT solutions provider, majoring in ICT support and outsourcing for institutions that didn’t need a full blown ICT Department. We still offer outsourcing services as we expand into other facets of the practice.
Software Development, Installation, sales in Nairobi Kenya
Data Recovery Services in Nairobi Kenya
Computers and Laptop Procurement, sales, repair and maintenance
ICT services outsourcing . Data Recovery companies
Waumini Hse, Westlands, Nairobi, KENYA PHONE: 0720500058