WHERE DO DELETED FILES GO?

Hey there,

As always today is also a very different and unique topic we've.

Ever wondered when we erase the data from our data drive it erases and we can write new data over there, and also when we need the old deleted data we can recover it from the recovery software easily.

So, where our old data goes actually..??

Let's go behind this mystery ;)






For Example:
If I've got a 32GB Pendrive I've my current data of 32Gb and also I can recover my 32Gb deleted data too.

WHAT..... DOES IT MEAN MY PENDRIVE HAVE 64GB STORAGE

Haha... your doubt is genuine there.

Let me explain you about this.

When you get a new hard disk, you have to format it before it can receive data.

But what is the meaning of formatting, or what happens when you format a disk?

When you format a partition using the GUI or the "format" command or the good old "Fdisk", 
Windows will create a file system which means the disk is ready to accept data. 

This file system is just a #table which is called FAT (File Allocation Table) or NTFS (New Technology File System). 
This table will contain names and addresses of files stored on the disk. In other words, every file that you save will have its exact location (physical address) on the hard disk. 

So when you save or place any file in the disk, Windows will create some numbers representing the sectors (very small parts of the disk) in which the file reside then place those numbers in the file system table.
 Then when you double-click to open a certain file, Windows will take the file name then check the table to see the numbers (addresses) of the sectors where the file is located on the hard drive and then it Windows() directs the #head of the hard disk to move to those sectors and read their contents, after that the file opens. 

When you #delete a file, Windows removes the numbers (the address of the file) from the file system table. That means, the deleted file is technically there on the hard disk but its location is not known. The icon (not the contents) representing the file will be placed in Recycle Bin.

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So, How Does a Recovery Software Recovers The Data?

The Recovery software Regenerates the numbers that are erased by windows with the help of their custom Algorithms.

And Here's how you get your erased data back.

Although some recovery software are so advanced that they can recover the data even when you've Formatted your Drive.


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