WHERE DO DELETED FILES GO? SHOCKING SECRETS REVEALED
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 use a recovery software, the software will bring the numbers back
and put them in the table making the file accessible again.When you
delete all files and re-format the disk then you will have "permanently"
lost the files because the entire table will be gone. but even after
formatting, there are some advanced tools that can #recreate the table
with all its contents thus recovering all the data.
When
you #delete a file, Windows removes the numbers (the address of the
file) from the the file system table. That means , the deleted file is
technically there on the hard disk but it's location is not known. The
icon (not the contents) representing the file will be placed in Recycle
Bin. The reference of the file is removed from the table but the file
itself is there hiding somewhere on the disk. The sectors the file
occupies will be marked as free (free space) that's why other new files
can occupy those sectors.
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