Why_Wipe_Free_Disk_Space_ by Ahmad6599

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									Title:
Why Wipe Free Disk Space?

Word Count:
513

Summary:
Computers have found very many applications in today’s world, in almost
every field of human activity. Offices, schools, libraries, and other
organizations that need to keep track of and organize huge masses of
information have found that computers perform this task admirably.
Scientists and engineers have been able to leverage the massive computing
power now available to help solve problems once thought unsolvable, and
to develop new technologies through simulation. Writers,...


Keywords:
wipe free disk space,wiping hard disk,wipe free space


Article Body:
Computers have found very many applications in today’s world, in almost
every field of human activity. Offices, schools, libraries, and other
organizations that need to keep track of and organize huge masses of
information have found that computers perform this task admirably.
Scientists and engineers have been able to leverage the massive computing
power now available to help solve problems once thought unsolvable, and
to develop new technologies through simulation. Writers, visual artists,
and even musical composers have also found that computers can provide new
and exciting ways for them to practice their respective crafts.

Because of this, it has also become quite important to look at the
different ways of storing digital data. Digital data here refers to that
information stored in methods that make it accessible to computers, such
as on hard disks or compact discs (CD’s). Apart from increasing the
amount of data that could be stored on a particular digital storage
device, discussions of data security have also arisen.

Computers have been made to handle confidential information, which is
meant to be protected from unauthorized access. Password protection is
now an option with most programs that work with digital files, and so is
of course keeping the computers in question physically secure. Sometimes,
however, it may become necessary to delete certain files in such a manner
as to leave no traces on the medium.

This is where the disk wiping or file shredding operation comes in. These
processes are distinguished from ordinary deletion by the fact that they
are more permanent. The data disposed of using either of these two
processes are much more difficult to recover than data merely deleted.
This is so because when a file is deleted, it is actually not removed
from the hard disk. Instead, what happens is just that it is marked
“deleted”, and the space it occupies on the disk surface is marked
“available”.
In other words, the file information remains on the hard disk, available
for curious eyes to recover and view. In the file shredding operation,
the area on the hard disk where the file is stored is actually
overwritten with random data. This helps to mask any traces that the file
has left on the hard disk, and makes recovering the shredded file’s
information virtually impossible.

A disk wipe is simply the same operation, but performed over the entire
area of the hard disk, to more or less permanently delete all data on the
disk.

Some programs have the function of wiping free disk space. This may seem
useless, at first encounter, but it actually does have its own uses. Some
programs such as word processors or spreadsheets may create temporary
files that hold information. Also, previously deleted files that have not
yet been wiped are still on the disk, available for recovery. By wiping
the free disk space, these temporary files are removed, and the
previously deleted files become gone for good. Wiping free disk space
would be a useful habit to form, to help guard against the unintentional
recovery of deleted data, thought lost.

								
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