<s>
The	O
Windows	B-Application
Hardware	I-Application
Lab	I-Application
Kit	I-Application
(	O
Windows	B-Application
HLK	I-Application
)	O
is	O
a	O
test	B-Application
automation	I-Application
framework	O
provided	O
by	O
Microsoft	O
to	O
certify	O
devices	O
for	O
Windows	O
.	O
</s>
<s>
Earlier	O
similarly	O
released	O
frameworks	O
were	O
called	O
Windows	B-Application
Hardware	I-Application
Certification	I-Application
Kit	I-Application
(	O
Windows	B-Application
HCK	I-Application
)	O
and	O
Windows	B-Application
Logo	I-Application
Kit	I-Application
(	O
WLK	O
)	O
.	O
</s>
<s>
It	O
provides	O
automated	O
scheduling	O
and	O
execution	O
of	O
the	O
driver	B-Application
tests	O
that	O
hardware	B-Architecture
vendors	O
are	O
required	O
to	O
pass	O
in	O
order	O
to	O
qualify	O
to	O
use	O
the	O
Microsoft	O
Designed	O
for	O
Windows	O
Logo	O
.	O
</s>
<s>
It	O
also	O
enables	O
users	O
to	O
automate	O
driver	B-Application
tests	O
they	O
have	O
created	O
themselves	O
.	O
</s>
<s>
During	O
the	O
Windows	B-Application
2000	I-Application
,	O
XP	B-Application
,	O
2003	B-Application
timeframe	O
there	O
was	O
an	O
old	O
tool	O
Hardware	B-Application
Compatibility	I-Application
Test	I-Application
(	O
HCT	O
)	O
to	O
certify	O
devices	O
.	O
</s>
<s>
When	O
Windows	B-Application
Vista	I-Application
was	O
released	O
the	O
tool	O
was	O
replaced	O
by	O
Driver	B-Application
Test	I-Application
Manager	I-Application
(	O
DTM	O
)	O
which	O
can	O
certify	O
drivers	O
for	O
all	O
then-supported	O
platforms	O
.	O
</s>
<s>
At	O
that	O
time	O
DTM	O
was	O
part	O
of	O
Windows	B-Application
Driver	I-Application
Kit	I-Application
(	O
WDK	B-Application
)	O
.	O
</s>
<s>
Later	O
DTM	O
was	O
separated	O
from	O
WDK	B-Application
and	O
changed	O
its	O
name	O
to	O
Windows	B-Application
Logo	I-Application
Kit	I-Application
(	O
WLK	O
)	O
.	O
</s>
<s>
For	O
Windows	O
8	O
,	O
the	O
name	O
was	O
changed	O
to	O
Windows	B-Application
Hardware	I-Application
Certification	I-Application
Kit	I-Application
(	O
Windows	B-Application
HCK	I-Application
)	O
,	O
as	O
announced	O
at	O
the	O
//Build/	O
conference	O
.	O
</s>
<s>
Subsequently	O
,	O
its	O
name	O
was	O
once	O
again	O
changed	O
into	O
Windows	B-Application
Hardware	I-Application
Lab	I-Application
Kit	I-Application
(	O
Windows	B-Application
HLK	I-Application
)	O
for	O
Windows	O
10	O
release	O
,	O
intended	O
for	O
testing	O
of	O
hardware	B-Architecture
and	O
drivers	O
on	O
Windows	O
10	O
platform	O
.	O
</s>
<s>
The	O
Windows	B-Application
Hardware	I-Application
Certification	I-Application
Kit	I-Application
continues	O
testing	O
hardware	B-Architecture
on	O
Windows	O
7	O
,	O
Windows	O
8	O
and	O
Windows	O
8.1	O
(	O
and	O
their	O
server	O
products	O
respectively	O
)	O
platforms	O
.	O
</s>
