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Saturday 23 May 2015

Revover the files from harddisk or usb drives

Can we recover the files that have been deleted or recover the entire drive even it is formatted ?
Answer is Yes and No.
Before going to the methodology of recovering , let us understand what happens when we delete something.
As we all know that the data is stored in the form of 0's and 1's .
If any file is to be deleted, general convention is that all 0's and 1's should be converted to 0's but don't you think it is time taking process . so when you delete the file(s) or format , then the master file table reference, which merely tells the operating system where the file was located gets removed. Essentially, you're only removing the map to the data—not the data itself—while also giving the operating system permission to overwrite that area of the hard drive.so the answer is YES as it allows us to recover the data.
How to recover the data ?
Download test disk (http://www.cgsecurity.org/wiki/TestDisk) and follow the instructions in the site
Answer is No as the entire 0's and 1's are converted to 1's if your not doing quick format .

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