DATA RECOVERY - Computer Networking

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DATA RECOVERY

DATA RECOVERY
Data recovery is the process of recovering data from secondary storage devices ( including a hard disk, USB disk, memory card etc) when the data is no longer accessible normally. No matter how reliable storage device you use, any mechanical or electronic device always have a chance of failure. Fire, flood, earthquake or any other natural disaster can physically damage the storage device. This kind of damage known as physical damage and mostly cannot be repaired by the end user. These kinds of damage require special kind of hardware and technical expertise. Companies deploy several level backup strategies to deal with these kinds of situation.
In addition, there are other non-failure related causes of data loss like accidentally deleting files, repartitioning or formatting a disk etc. This kind of damage known as logical damage. In this section, we will try to recover these kinds of data.

USB data recovery

USB flash drive is one of the most widely used devices. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc. USB flash drives have no moving parts. Additionally, they are immune to magnetic interference (unlike floppy disks) and unharmed by surface scratches (unlike CD, DVDs). USB flash drive used for storage, backup, and transfer of computer files. They are smaller, faster, have thousands of times more capacity, and are more durable and reliable. Currently, up to 512 GB drives available in the market. USB flash drives use the USB mass storage standard, supported natively by all modern operating systems such as Linux, Unix, Windows, as well as many BIOS boot ROMs.
There is always a chance of data loss from a USB drive. In this article, we will recover data from USB Flash drive.

Attach a pen drive to the system
Move some dummy data in it
Delete all files
Suppose that it was an important data and we need it back. We cannot restore it from Recycle bin.
Whenever you delete a file from USB drive operating system actually does not delete a file, it only deletes file allocation information and set disk space as unused.
Any new data transfer or creation of a file in the drive will reduce your chance of recovery. You should avoid using flash drive after discovering that you need to recover a file. You have a good chance of recovery until this disk space is used by another file.
To recovery file deleted from USB Flash drive download this free file recovery software
Recuva is best to file recovery software. Its freeware but work like the premium file recovery software.
Recuva is developed and distributed by piriform.com. You can always check and download the latest version of Recuva from their official site.
http://www.piriform.com/recuva/builds
From there, click the Download button corresponding to the download type you prefer. You can choose between Installer, Portable, or Slim. I personally recommend you use the portable version of Recuva.
Create a folder
Move the zipped file in it and extract

You can set the folder location to extract the files
Folder contains both 32 and 64-bit application depending on the system from extracted files Launch Recuva application
Recuva provides two mode wizard and advance. First, try wizard mode click Next


If you are looking for the specific file and know its file type, its good idea to select it here for better and faster recovery. We are going to recover all data so select first option and click Next
Select In specific location option and click browse button and select USB Flash drive

Click Next

That's all information Recuva wizard need to search for deleted file Click on Start

Recuva wizard will scan the USB Flash drive. Depending on size of drive and number of files wizard will take few minutes. Wizard will return with the list of files which it found

·         Check box :- Allow you to select the files for recovery.
·         File name :- Name of file
·         Path :- Where this file was located before delete
·         Size :- File size
·         Status :- Current condition of file. Excellent have higher chance of recovery while bad or poor have lower chance or recovery.
·         Comment:- Provide details about the file space, whether it has been replace with new file or not. That's why I have suggested you to avoid using flash drive after discovering that you need to recover a file.

Select the files which you need to recover and click Recover button

You need to provide the location for recovery. Do not use the same location from where data was delete. It is better to create a new folder on another location and use it for recovery.

In few minutes wizard will complete the recovery operations. Click Ok

Open the folder which you select for recovery and verify the data

Now you can move this data back to USB Flash drive.

Computer Networking Notes

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