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Storage devices such as memory card, external hard drive, hard disk drive and USB drives stores the user data in the digital form. Storage medium can be used for storing the files such as word document files, excel sheets, office work, study materials and other data files. Nowadays people own their desktop or laptop computer for personal use. Hard disk drive is a secondary storage device used in the desktop and laptop computers. Loss of files on the various storage devices may occur due to several situations. Let us see how data loss may occur on the storage medium and how to recover deleted files from various storage devices.

Accidental deletion of files may occur on various portable storage devices when they are connected to computer. You can access the files stored on the various storage devices by connecting them to computer through USB port. Most commonly people likes to use external hard drive and USB flash drive (pen drive) to carry their data. The files may get delete or lost on the external hard drive or pen drive due to various situations like accidental deletion of wrong files, deleted by viruses, deleted when you press “Shift + Delete” keys, missing of files when the Cut command has been used, deleted by certain third party applications, deleted from the command line and files deleted due to antivirus scanning etc.

Most important case scenarios in which data loss on the external hard drive or pen drive may be occurred are listed below:

• Incomplete file transmission process: Suppose you have connected the external hard drive through USB port, using USB data cable provided with it, to your computer and moving some files from it into computer’s hard disk drive. Consider you are using Cut and Paste command to move files and unexpectedly the system gets shutdown due to power outage during file transfer. This kind of a situation will lead to incomplete file transmission process. Due to incomplete file transmission process there are chances for missing of files on the external hard drive.
• Virus attack: The virus is a computer program or a piece of code that can replicate itself and spread from one storage device to another. Suppose your hard disk drive is having virus and you are not using the updated antivirus software in your computer. If you connect the pen drive to your computer then there is a chance to spread virus from computer’s hard disk drive to your pen drive. When this happens the virus can corrupt the files stored on the pen drive. Even the virus can delete some files on the pen drive or the files may get delete by the updated antivirus software when you scan the pen drive.

The deleted or lost files are not permanently erased from the storage media, and there is a chance to recover them until a new data overwrites on it. To perform deleted file recovery you need to use good third party file recovery software. Remo Recover (Windows) – Basic Edition software is the best third party file recovery software which is devised to recover deleted or lost files from the various storage devices. You can download the free demo version for trial.