<s>
O&O	B-Application
Defrag	I-Application
is	O
a	O
Windows	O
defragmentation	B-Application
utility	O
sold	O
by	O
German	O
software	O
developer	O
O&O	O
Software	O
.	O
</s>
<s>
It	O
has	O
won	O
several	O
awards	O
by	O
PC	O
journals	O
and	O
magazines	O
,	O
and	O
is	O
certified	O
by	O
Microsoft	O
for	O
all	O
its	O
current	O
NTFS-based	O
operating	O
systems	O
,	O
including	O
Windows	B-Application
2000	I-Application
,	O
Server	B-Application
2003	I-Application
,	O
Vista	B-Application
,	O
7	B-Device
,	O
and	O
10	B-Operating_System
.	O
</s>
<s>
When	O
required	O
,	O
the	O
program	O
checks	O
the	O
volume	O
for	O
errors	O
before	O
defragmenting	B-Application
.	O
</s>
<s>
The	O
defrag	B-Application
procedure	O
can	O
be	O
scheduled	O
for	O
a	O
certain	O
time	O
,	O
or	O
can	O
be	O
carried	O
out	O
when	O
the	O
PC	O
is	O
normally	O
idle	O
.	O
</s>
<s>
The	O
defrag	B-Application
can	O
be	O
run	O
in	O
the	O
background	O
so	O
that	O
the	O
user	O
hardly	O
notices	O
its	O
operation	O
.	O
</s>
<s>
The	O
defrag	B-Application
can	O
be	O
run	O
in	O
screensaver	O
mode	O
.	O
</s>
<s>
There	O
are	O
five	O
different	O
defrag	B-Application
methods	O
:	O
Stealth	O
,	O
Space	O
,	O
Complete/Name	O
,	O
Complete/Modified	O
,	O
Complete/Access	O
.	O
</s>
