We provide in house data recovery for hard drives, cd roms, flash drives and Solid State Drives (SSD)
DATA RECOVERY For Regular Disk
For rotational drives, most hard drives fail incrementally. If the motor spins and the heads move, most failures are bad blocks. This is where parts of the disks is unreadable, but other parts are. So data recovery is able to retrieve the data from parts that are readable. Fortunately, not all data of the drive is valuable to the customer. Much of the drive is devoted to operating system information. So even though some of the data is corrupted, it may be possible to reconstruct the useful information from the remaining good parts of the drive. However, this may be a long, time consuming process.
Sometimes there are complete failures, like the motor no longer spins, or the heads are out of alignment, and clicks as it searches back and forth for the alignment mark. In these cases, the data is safe, but unable to access, so the drive must be opened and then the platters placed on a separate motor and head assembly and extracted.
Another source of data corruption are malware and virus attackts. A typical virus actually changes various files, while malware changes the way the system operates, and may delete or substitute other files. Even after the virus is cleaned, many files may need to be recovered.
The environment inside a hard drive has to be very clean. The platter spins at thousands of RPM (typically 7000 RPM for a 3.5 inch drive, 3000 RPM for a 2.5 drive, and 10,000 RPM or more for high speed server drives), the heads fly over the platter disk microns above the surface. This is less than the width of a human hair and any dust will cause a disk crash (a scratch on the disk which renders that part of the disk unreadable).
Hence data recovery is typically an expensive process.
Hard Drive Recovery List of Services:
Data Recovery Level 1: Able to read Drive, but Unable to find Files
Here, the hard drive is not damage, but the files cannot be found. They can be accidentally moved, renamed or deleted but not overwritten. Fortunately, it is possible to retrieve this data by using software, scanning and examining the resultant files for the missing data.
Data Recovery Level 2: Unable to read Files, but Hard drive not Physically damaged
In this case, the hard drive is readable, but it has been accidentally formatted, the partition removed, or files accidentally deleted and overwritten. It is possible to retrieve this data in many cases by using software that will reconstruct the partition or deleted files. However, sometimes information like the file name is lost, so the user must still spend a great deal of time to review the recovered data. Special software, plus judicious manual inspection and reconstruction techniques can restore critical files and perform the data recovery.
Data Recovery Level 3: Hard drive repair
In this case, the Hard drive is damaged and needs repair. This is the common bad blocks problem. Because of critical nature of hard drive platters, and the extreme density of the data, it is prohibitively expensive to create perfect defect free hard drives. Hard drive manufacturers provide spare sectors (empty areas of the drive). If certain parts of the drive become unreadable, the hard drive electronics will reprogram itself to use the spare areas, and exclude the bad areas.
However, if the drive fails while holding critical data, then we have a crash. The drive can normally be repaired via software using the spare sectors and once data is retrieved, the drive can be used again. However, this is highly NOT recommended. The reason is the spare drive sectors are normally not sequential, so after data recovery, and reallocation of the spare sectors, the drive performance is seriously degraded.
Data Recovery Level 4: Hard drive badly damaged
In this case, the hard drive has serious physical damage. This includes bad blocks, but also drive electronics, and motor controller. In this case, if the motor works and heads work, it is possible to replace the drive components and restart the drive. However, every drive has a chip which holds the original factory information on the bad blocks found during manufacture. This chip has to be copied or transfer to the new drive board to make the drive read correctly.
Data Recovery Level 5: Sent out Third Party
In this case, the motor itself is dead or the head motors are not working. The drive needs to be sent out to a clean room where the motor or heads can be replaced and so the data recovery can be completed.
CD, DVD Flash Drive, SSD Drive Recovery
We also recover data from CD, DVD, Flash Drive and Solid state Drives (SSD)