<s>
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
is	O
a	O
freemium	O
software	O
application	O
for	O
Microsoft	B-Application
Windows	I-Application
intended	O
to	O
defragment	B-Application
files	O
and	O
folders	O
on	O
a	O
hard	B-Device
drive	I-Device
,	O
consolidate	O
free	O
space	O
and	O
optimize	O
file	O
placement	O
using	O
different	O
criteria	O
.	O
</s>
<s>
It	O
is	O
available	O
in	O
both	O
a	O
free	O
and	O
a	O
proprietary	B-Application
"	O
Pro	O
"	O
version	O
with	O
extended	O
functionality	O
.	O
</s>
<s>
The	O
program	O
is	O
published	O
by	O
Auslogics	O
Software	O
Pty	O
Ltd	O
,	O
an	O
Australian-based	O
company	O
specializing	O
in	O
maintenance	O
software	O
for	O
computers	O
that	O
run	O
the	O
Microsoft	B-Application
Windows	I-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
Starting	O
in	O
2008	O
,	O
the	O
company	O
gained	O
recognition	O
for	O
two	O
products	O
–	O
Auslogics	O
BoostSpeed	O
and	O
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
.	O
</s>
<s>
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
was	O
released	O
in	O
early	O
2007	O
as	O
the	O
first	O
public	O
non-beta	O
version	O
1.1.2.208	O
.	O
</s>
<s>
It	O
was	O
free	O
,	O
gaining	O
popularity	O
as	O
a	O
substitute	O
for	O
the	O
Windows	O
standard	O
defragmenter	B-Application
.	O
</s>
<s>
On	O
February	O
1	O
,	O
2012	O
,	O
the	O
publisher	O
released	O
the	O
professional	O
version	O
of	O
Disk	O
Defrag	B-Application
,	O
with	O
the	O
free	O
version	O
remaining	O
and	O
differing	O
from	O
the	O
new	O
professional	O
one	O
in	O
functionality	O
.	O
</s>
<s>
As	O
of	O
this	O
date	O
,	O
the	O
two	O
versions	O
of	O
the	O
application	O
are	O
given	O
the	O
names	O
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
Professional	O
and	O
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
Free	O
to	O
differentiate	O
them	O
.	O
</s>
<s>
Starting	O
with	O
file	O
defragmentation	B-Application
in	O
its	O
earlier	O
versions	O
,	O
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
expanded	O
its	O
capabilities	O
to	O
include	O
free	O
space	O
defragmentation	B-Application
,	O
optimization	O
of	O
file	O
placement	O
based	O
on	O
various	O
criteria	O
,	O
ability	O
to	O
schedule	O
defragmentation	B-Application
,	O
defragment	B-Application
in	O
the	O
background	O
,	O
as	O
well	O
as	O
a	O
number	O
of	O
advanced	O
functions	O
in	O
the	O
professional	O
version	O
of	O
the	O
program	O
.	O
</s>
<s>
The	O
independent	O
tests	O
run	O
by	O
the	O
experts	O
from	O
the	O
above	O
sources	O
showed	O
that	O
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
could	O
defragment	B-Application
well	O
or	O
better	O
than	O
most	O
other	O
similar	O
applications	O
reviewed	O
.	O
</s>
<s>
The	O
new	O
professional	O
edition	O
of	O
the	O
application	O
,	O
Auslogics	B-Application
Disk	I-Application
Defrag	I-Application
Pro	O
,	O
since	O
being	O
released	O
in	O
early	O
February	O
2012	O
,	O
has	O
also	O
been	O
tested	O
and	O
reviewed	O
by	O
the	O
main	O
industry	O
magazines	O
and	O
online	O
authorities	O
.	O
</s>
<s>
Disk	O
Defrag	B-Application
Professional	O
was	O
also	O
reviewed	O
by	O
the	O
major	O
industry	O
magazine	O
PC	O
Advisor	O
,	O
which	O
called	O
it	O
a	O
"	O
very	O
powerful	O
defrag	B-Application
tool	O
"	O
and	O
noted	O
the	O
program	O
's	O
many	O
customization	O
options	O
as	O
an	O
advantage	O
.	O
</s>
