<s>
Defraggler	B-Application
is	O
a	O
freemium	O
defragmentation	B-Application
utility	O
developed	O
by	O
Piriform	O
Software	O
,	O
which	O
can	O
defragment	B-Application
individual	O
files	O
or	O
groups	O
of	O
files	O
on	O
computer	O
memory	O
systems	O
.	O
</s>
<s>
Defraggler	B-Application
runs	O
on	O
Microsoft	B-Application
Windows	I-Application
;	O
it	O
has	O
support	O
for	O
all	O
versions	O
since	O
Windows	B-Application
XP	I-Application
.	O
</s>
<s>
It	O
includes	O
support	O
for	O
both	O
IA-32	B-Device
and	O
x64	B-Device
versions	O
of	O
these	O
operating	O
systems	O
.	O
</s>
<s>
Defraggler	B-Application
can	O
defragment	B-Application
individual	O
files	O
,	O
groups	O
of	O
files	O
(	O
in	O
a	O
folder	O
)	O
or	O
an	O
entire	O
disk	B-Application
partition	I-Application
,	O
either	O
by	O
the	O
user	O
's	O
command	O
or	O
automatically	O
on	O
a	O
schedule	O
.	O
</s>
<s>
It	O
supports	O
FAT32	O
,	O
NTFS	B-Application
,	O
and	O
exFAT	B-Application
.	O
</s>
<s>
It	O
can	O
also	O
be	O
installed	O
as	O
a	O
portable	B-Application
application	I-Application
on	O
a	O
USB	O
flash	O
drive	O
.	O
</s>
<s>
Defragmentation	B-Application
of	O
RAID	B-Architecture
disks	O
is	O
also	O
supported	O
,	O
although	O
no	O
details	O
are	O
supplied	O
.	O
</s>
<s>
Defraggler	B-Application
was	O
given	O
a	O
5/5	O
star	O
rating	O
from	O
Softpedia	O
.	O
</s>
<s>
In	O
Lifehacker	O
's	O
Hive	O
Five	O
for	O
Best	O
Disk	B-Application
Defragmenter	I-Application
,	O
Defraggler	B-Application
received	O
first	O
place	O
.	O
</s>
