<s>
Recuva	B-Application
(	O
)	O
is	O
an	O
undeletion	O
program	O
for	O
Windows	B-Application
,	O
developed	O
by	O
Piriform	O
Software	O
.	O
</s>
<s>
Recuva	B-Application
can	O
recover	O
files	O
deleted	O
from	O
internal	O
and	O
external	O
hard	B-Device
disk	I-Device
drives	I-Device
,	O
USB	O
flash	O
drives	O
,	O
memory	B-Device
cards	I-Device
,	O
portable	O
media	O
players	O
or	O
all	O
random-access	O
storage	O
mediums	O
with	O
a	O
supported	O
file	O
system	O
.	O
</s>
<s>
Recuva	B-Application
was	O
described	O
by	O
vnunet.com	O
as	O
an	O
"	O
effective	O
tool	O
for	O
undeleting	O
or	O
salvaging	O
files	O
we	O
sent	O
for	O
recycling	O
and	O
deleted	O
,	O
in	O
the	O
past	O
"	O
.	O
</s>
<s>
The	O
program	O
works	O
on	O
FAT	B-Application
,	O
exFAT	B-Application
and	O
NTFS	B-Application
file	I-Application
systems	I-Application
of	O
Windows	B-Application
.	O
</s>
<s>
As	O
of	O
version	O
1.5.3	O
it	O
can	O
also	O
recover	O
files	O
from	O
Ext2	B-Application
,	O
Ext3	B-Application
and	O
Ext4	B-Application
file	O
systems	O
of	O
Linux	B-Application
.	O
</s>
<s>
As	O
with	O
other	O
file	O
recovery	O
programs	O
Recuva	B-Application
works	O
by	O
looking	O
for	O
unreferenced	O
data	O
,	O
but	O
if	O
the	O
operating	O
system	O
has	O
written	O
new	O
data	O
over	O
a	O
deleted	O
file	O
then	O
recovery	O
will	O
often	O
not	O
be	O
possible	O
.	O
</s>
