<s>
UltraDefrag	B-Language
is	O
a	O
disk	B-Application
defragmentation	I-Application
utility	I-Application
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
Prior	O
to	O
version	O
8.0.0	O
it	O
was	O
released	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
The	O
only	O
other	O
Windows-based	O
defragmentation	B-Application
utility	O
licensed	O
under	O
the	O
GNU	B-License
GPL	I-License
was	O
JkDefrag	B-Application
,	O
discontinued	O
in	O
2008	O
.	O
</s>
<s>
In	O
2018	O
,	O
UltraDefrag	B-Language
sources	O
have	O
been	O
relicensed	O
to	O
Green	O
Gate	O
Systems	O
.	O
</s>
<s>
Their	O
enhanced	O
version	O
,	O
released	O
under	O
a	O
proprietary	B-Application
license	I-Application
,	O
features	O
automatic	O
defragmentation	B-Application
,	O
disk	O
cleanup	O
before	O
defragmentation	B-Application
,	O
graphical	O
interface	O
for	O
setting	O
user	O
preferences	O
,	O
optimization	O
of	O
solid	O
state	O
drives	O
,	O
full	O
compatibility	O
with	O
Windows	B-Application
11	I-Application
and	O
10	O
,	O
and	O
is	O
said	O
to	O
have	O
much	O
faster	O
disk	O
processing	O
algorithms	O
.	O
</s>
<s>
UltraDefrag	B-Language
uses	O
the	O
defragmentation	B-Application
part	O
of	O
Windows	B-Library
API	I-Library
and	O
works	O
on	O
Windows	B-Device
NT	I-Device
4.0	I-Device
and	O
later	O
.	O
</s>
<s>
It	O
supports	O
FAT12	B-Application
,	O
FAT16	B-Application
,	O
FAT32	B-Application
,	O
exFAT	B-Application
,	O
and	O
NTFS	B-Application
file	I-Application
systems	I-Application
.	O
</s>
<s>
Jean-Pierre	O
André	O
,	O
one	O
of	O
the	O
developers	O
of	O
NTFS-3G	B-Application
,	O
has	O
created	O
a	O
fork	O
of	O
UltraDefrag	B-Language
5	O
that	O
runs	O
on	O
Linux	O
.	O
</s>
