<s>
Windows	B-Application
Insider	I-Application
is	O
an	O
open	O
software	O
testing	O
program	O
by	O
Microsoft	O
that	O
allows	O
users	O
globally	O
who	O
own	O
a	O
valid	O
license	O
of	O
Windows	B-Application
11	I-Application
,	O
Windows	B-Operating_System
10	I-Operating_System
,	O
or	O
Windows	B-Device
Server	I-Device
to	O
register	O
for	O
pre-release	O
builds	O
of	O
the	O
operating	B-General_Concept
system	I-General_Concept
previously	O
only	O
accessible	O
to	O
software	B-Application
developers	I-Application
.	O
</s>
<s>
Microsoft	O
launched	O
Windows	B-Application
Insider	I-Application
for	O
developers	B-Application
,	O
enterprise	O
testers	O
and	O
the	O
"	O
technically	O
able	O
"	O
to	O
test	O
new	O
developer	B-Application
features	O
on	O
pre-release	O
software	O
and	O
builds	O
to	O
gather	O
low	O
level	O
diagnostics	O
feedback	O
in	O
order	O
to	O
identify	O
,	O
investigate	O
,	O
mitigate	O
and	O
improve	O
Windows	B-Operating_System
10	I-Operating_System
,	O
with	O
the	O
help	O
,	O
support	O
and	O
guidance	O
of	O
the	O
Insider	O
program	O
Participants	O
,	O
in	O
direct	O
communication	O
with	O
Microsoft	O
Engineers	O
via	O
a	O
proprietary	O
communication	O
and	O
diagnostic	O
channel	O
.	O
</s>
<s>
It	O
was	O
announced	O
on	O
September	O
30	O
,	O
2014	O
,	O
along	O
with	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
By	O
September	O
2015	O
,	O
over	O
7	O
million	O
people	O
took	O
part	O
in	O
the	O
Windows	B-Application
Insider	I-Application
program	I-Application
.	O
</s>
<s>
On	O
February	O
12	O
,	O
2015	O
,	O
Microsoft	O
started	O
to	O
test	O
out	O
previews	O
of	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
.	O
</s>
<s>
Microsoft	O
announced	O
that	O
the	O
Windows	B-Application
Insider	I-Application
program	I-Application
would	O
continue	O
beyond	O
the	O
official	O
release	O
of	O
Windows	B-Operating_System
10	I-Operating_System
for	O
future	O
updates	O
.	O
</s>
<s>
Gabriel	O
Aul	O
and	O
Dona	O
Sarkar	O
were	O
both	O
previously	O
the	O
head	O
of	O
the	O
Windows	B-Application
Insider	I-Application
Program	I-Application
.	O
</s>
<s>
The	O
present	O
head	O
of	O
the	O
Windows	B-Application
Insider	I-Application
program	I-Application
is	O
Amanda	O
Langowski	O
.	O
</s>
<s>
Similar	O
to	O
the	O
Windows	B-Application
Insider	I-Application
program	I-Application
,	O
the	O
Microsoft	B-Application
Office	I-Application
,	O
Microsoft	B-Application
Edge	I-Application
,	O
Skype	B-Application
,	O
Bing	B-Application
,	O
Xbox	B-Protocol
and	O
Visual	B-Language
Studio	I-Language
Code	I-Language
teams	O
have	O
set	O
up	O
their	O
own	O
Insider	O
programs	O
.	O
</s>
<s>
Microsoft	O
originally	O
launched	O
Windows	B-Application
Insider	I-Application
for	O
enterprise	O
testers	O
and	O
the	O
"	O
technically	O
able	O
"	O
to	O
test	O
out	O
new	O
developer	B-Application
features	O
and	O
to	O
gather	O
feedback	O
to	O
improve	O
the	O
features	O
built	O
into	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
By	O
the	O
time	O
of	O
the	O
official	O
launch	O
of	O
Windows	B-Operating_System
10	I-Operating_System
for	O
PCs	O
,	O
a	O
total	O
of	O
5	O
million	O
volunteers	O
were	O
registered	O
on	O
both	O
Windows	B-Operating_System
10	I-Operating_System
and	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
.	O
</s>
<s>
They	O
were	O
also	O
among	O
the	O
first	O
people	O
to	O
receive	O
the	O
official	O
update	O
to	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
With	O
the	O
release	O
of	O
Windows	B-Operating_System
10	I-Operating_System
,	O
the	O
Windows	B-Application
Insider	I-Application
app	O
was	O
merged	O
with	O
the	O
Settings	B-Application
app	I-Application
.	O
</s>
<s>
This	O
made	O
the	O
ability	O
to	O
install	O
Windows	B-Application
Insider	I-Application
preview	O
builds	O
an	O
optional	O
feature	O
which	O
could	O
be	O
accessed	O
directly	O
from	O
within	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
In	O
May	O
2017	O
,	O
Microsoft	O
announced	O
that	O
the	O
program	O
would	O
extend	O
to	O
Windows	B-Device
Server	I-Device
2016	O
.	O
</s>
<s>
The	O
first	O
Insider	O
build	O
for	O
this	O
operating	B-General_Concept
system	I-General_Concept
was	O
released	O
on	O
13	O
July	O
2017	O
.	O
</s>
<s>
On	O
June	O
24	O
,	O
2021	O
,	O
Microsoft	O
announced	O
that	O
the	O
program	O
would	O
extend	O
to	O
Windows	B-Application
11	I-Application
,	O
with	O
the	O
Dev	O
and	O
Beta	O
channels	O
transitioning	O
to	O
the	O
new	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
The	O
first	O
Insider	O
build	O
for	O
Windows	B-Application
11	I-Application
was	O
released	O
on	O
June	O
28	O
,	O
2021	O
for	O
the	O
Dev	O
Channel	O
.	O
</s>
<s>
Windows	B-Application
Insider	I-Application
Preview	O
updates	O
are	O
delivered	O
to	O
testers	O
in	O
different	O
channels	O
(	O
previously	O
"	O
rings	O
"	O
)	O
or	O
logical	O
categories	O
:	O
Windows	B-Application
Insiders	I-Application
in	O
Dev	O
Channel	O
(	O
previously	O
Fast	O
ring	O
)	O
receive	O
updates	O
prior	O
to	O
Windows	B-Application
Insiders	I-Application
in	O
Beta	O
Channel	O
(	O
previously	O
Slow	O
ring	O
)	O
but	O
might	O
experience	O
more	O
bugs	O
and	O
other	O
issues	O
.	O
</s>
<s>
On	O
November	O
5	O
,	O
2019	O
,	O
Microsoft	O
abandoned	O
the	O
Skip	O
Ahead	O
ring	O
from	O
the	O
Windows	B-Application
Insider	I-Application
Program	I-Application
,	O
stating	O
"	O
Our	O
goal	O
is	O
to	O
provide	O
everyone	O
in	O
the	O
Fast	O
ring	O
the	O
freshest	O
builds	O
at	O
the	O
same	O
time	O
"	O
.	O
</s>
<s>
On	O
June	O
15	O
,	O
2020	O
,	O
Microsoft	O
introduced	O
"	O
channels	O
"	O
model	O
to	O
its	O
Windows	B-Application
Insider	I-Application
Program	I-Application
,	O
succeeding	O
its	O
"	O
rings	O
"	O
model	O
.	O
</s>
<s>
On	O
July	O
17	O
,	O
2017	O
,	O
reports	O
began	O
to	O
come	O
that	O
Windows	B-Operating_System
10	I-Operating_System
Creators	O
Update	O
refused	O
to	O
install	O
on	O
PCs	O
and	O
tablets	O
sporting	O
Intel	O
Atom	O
"	O
Clover	O
Trail	O
"	O
processors	O
.	O
</s>
<s>
At	O
first	O
,	O
it	O
appeared	O
as	O
though	O
this	O
might	O
have	O
been	O
a	O
temporary	O
block	O
as	O
Microsoft	O
and	O
hardware	O
partners	O
work	O
to	O
fix	O
the	O
issues	O
preventing	O
the	O
operating	B-General_Concept
system	I-General_Concept
to	O
run	O
well	O
.	O
</s>
<s>
However	O
,	O
Microsoft	O
later	O
confirmed	O
that	O
devices	O
running	O
the	O
"	O
Clover	O
Trail	O
"	O
Intel	O
Atom	O
processors	O
would	O
not	O
be	O
receiving	O
the	O
Creators	O
Update	O
,	O
as	O
the	O
processors	O
are	O
no	O
longer	O
supported	O
by	O
Intel	O
and	O
does	O
not	O
have	O
the	O
appropriate	O
firmware	O
to	O
properly	O
run	O
versions	O
of	O
Windows	B-Operating_System
10	I-Operating_System
newer	O
than	O
the	O
Anniversary	O
Update	O
.	O
</s>
<s>
The	O
following	O
processors	O
are	O
no	O
longer	O
supported	O
and	O
will	O
remain	O
on	O
Windows	B-Operating_System
10	I-Operating_System
Anniversary	O
Update	O
:	O
</s>
<s>
Because	O
PCs	O
with	O
unsupported	O
processors	O
could	O
not	O
receive	O
new	O
features	O
updates	O
,	O
Microsoft	O
agreed	O
to	O
extend	O
support	O
for	O
these	O
PCs	O
with	O
the	O
bug	O
fixes	O
and	O
security	O
updates	O
for	O
the	O
latest	O
compatible	O
version	O
of	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
Versions	O
of	O
Windows	B-Operating_System
10	I-Operating_System
that	O
were	O
released	O
before	O
a	O
microprocessor	O
was	O
released	O
is	O
also	O
not	O
supported	O
and	O
installations	O
for	O
those	O
operating	B-General_Concept
systems	I-General_Concept
may	O
be	O
actively	O
blocked	O
.	O
</s>
<s>
For	O
example	O
,	O
Windows	B-Operating_System
10	I-Operating_System
Version	O
1507	O
LTSB	O
will	O
not	O
install	O
on	O
Kaby	B-Device
Lake	I-Device
processors	O
.	O
</s>
<s>
Due	O
to	O
security	O
concerns	O
such	O
as	O
the	O
zero	O
day	O
exploit	O
,	O
Windows	B-Application
11	I-Application
now	O
requires	O
an	O
8th	B-Device
generation	I-Device
or	O
later	O
Intel	O
CPU	O
or	O
a	O
2nd	O
generation	O
AMD	O
Ryzen	O
or	O
later	O
CPU	O
,	O
with	O
a	O
Trusted	O
Platform	O
Module	O
2.0	O
security	O
chip	O
and	O
Secure	O
Boot	O
enabled	O
.	O
</s>
<s>
Testing	O
had	O
been	O
conducted	O
on	O
7th	B-Device
generation	I-Device
Intel	O
and	O
1st	O
generation	O
Ryzen	O
CPUs	O
,	O
but	O
support	O
was	O
ended	O
before	O
the	O
final	O
version	O
was	O
released	O
.	O
</s>
<s>
Older	O
CPUs	O
and	O
systems	O
without	O
TPM	O
or	O
Secure	O
Boot	O
may	O
be	O
able	O
to	O
run	O
Windows	B-Application
11	I-Application
,	O
but	O
will	O
require	O
changes	O
to	O
be	O
made	O
to	O
the	O
system	O
registry	O
to	O
be	O
able	O
to	O
upgrade	O
to	O
the	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
Microsoft	O
has	O
raised	O
the	O
possibility	O
of	O
not	O
providing	O
updates	O
to	O
unsupported	O
devices	O
on	O
Windows	B-Application
11	I-Application
.	O
</s>
<s>
Microsoft	O
initially	O
launched	O
Windows	B-Application
10	I-Application
Technical	I-Application
Preview	I-Application
for	O
certain	O
third-generation	O
(	O
x30	O
series	O
)	O
phones	O
from	O
their	O
Lumia	B-Device
family	O
and	O
subsequently	O
released	O
it	O
to	O
second-generation	O
(	O
x20	O
series	O
)	O
devices	O
throughout	O
the	O
testing	O
phase	O
.	O
</s>
<s>
Some	O
hacked	O
their	O
non-Lumia	O
phones	O
(	O
which	O
were	O
not	O
supported	O
at	O
the	O
time	O
)	O
to	O
download	O
the	O
preview	O
builds	O
.	O
</s>
<s>
To	O
roll	O
back	O
the	O
installed	O
technical	O
preview	O
back	O
to	O
Windows	B-Protocol
Phone	I-Protocol
8.1	I-Protocol
,	O
Microsoft	O
launched	O
Windows	O
Device	O
Recovery	O
Tool	O
that	O
removes	O
Windows	B-Operating_System
10	I-Operating_System
and	O
recovers	O
the	O
latest	O
officially	O
released	O
software	O
and	O
firmware	O
.	O
</s>
<s>
Preview	O
build	O
10080	O
,	O
released	O
on	O
May	O
14	O
,	O
2015	O
,	O
was	O
the	O
first	O
to	O
support	O
a	O
non-Lumia	O
device	O
,	O
the	O
HTC	B-Application
One	I-Application
M8	I-Application
for	O
Windows	O
.	O
</s>
<s>
This	O
was	O
followed	O
up	O
by	O
Xiaomi	O
who	O
,	O
in	O
partnership	O
with	O
Microsoft	O
,	O
released	O
a	O
ROM	O
port	O
of	O
Windows	B-Operating_System
10	I-Operating_System
to	O
its	O
flagship	O
Mi	B-Application
4	I-Application
handset	O
on	O
June	O
1	O
,	O
2015	O
.	O
</s>
<s>
Build	O
10080	O
and	O
its	O
follow-up	O
build	O
10166	O
also	O
added	O
support	O
for	O
fourth-generation	O
Lumia	B-Device
(	O
x40	O
series	O
)	O
devices	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
all	O
compatible	O
Windows	O
Phone	O
8	O
or	O
later	O
Lumia	B-Device
phones	O
now	O
support	O
the	O
preview	O
.	O
</s>
<s>
In	O
August	O
2015	O
,	O
Microsoft	O
stated	O
that	O
while	O
all	O
Windows	O
Phone	O
devices	O
,	O
including	O
those	O
from	O
Microsoft	O
's	O
new	O
hardware	O
partners	O
announced	O
the	O
previous	O
year	O
,	O
would	O
receive	O
the	O
final	O
version	O
of	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
,	O
not	O
all	O
would	O
receive	O
preview	O
builds	O
through	O
the	O
Insider	O
program	O
.	O
</s>
<s>
Microsoft	O
instead	O
focused	O
on	O
promoting	O
new	O
devices	O
that	O
come	O
with	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
,	O
including	O
their	O
Lumia	B-Application
950	I-Application
and	O
Lumia	B-Device
950	I-Device
XL	I-Device
flagships	O
,	O
and	O
the	O
low-cost	O
Lumia	B-Device
550	I-Device
and	O
Lumia	B-Application
650	I-Application
.	O
</s>
<s>
Since	O
their	O
release	O
,	O
these	O
new	O
Windows	B-Operating_System
10	I-Operating_System
devices	O
became	O
eligible	O
to	O
receive	O
future	O
updates	O
in	O
advance	O
via	O
the	O
Insider	O
program	O
,	O
beginning	O
with	O
build	O
10586	O
on	O
December	O
4	O
,	O
2015	O
.	O
</s>
<s>
On	O
February	O
19	O
,	O
2016	O
,	O
Microsoft	O
released	O
the	O
first	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
"	O
Redstone	O
"	O
preview	O
,	O
build	O
14267	O
.	O
</s>
<s>
Starting	O
with	O
this	O
build	O
,	O
future	O
preview	O
versions	O
became	O
exclusively	O
available	O
for	O
devices	O
that	O
were	O
already	O
running	O
a	O
non-Insider	O
preview	O
of	O
the	O
OS	O
,	O
except	O
for	O
the	O
Mi4	B-Application
ROM	O
version	O
.	O
</s>
<s>
This	O
was	O
followed	O
by	O
build	O
14291	O
,	O
released	O
for	O
existing	O
Windows	B-Operating_System
10	I-Operating_System
devices	O
on	O
March	O
17	O
,	O
2016	O
in	O
conjunction	O
with	O
the	O
official	O
RTM	O
release	O
of	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
to	O
third	O
and	O
fourth-generation	O
Lumias	O
.	O
</s>
<s>
The	O
following	O
week	O
,	O
it	O
became	O
available	O
to	O
the	O
newly	O
upgraded	O
older	O
Lumias	O
in	O
addition	O
to	O
several	O
other	O
devices	O
already	O
on	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
at	O
the	O
time	O
.	O
</s>
<s>
Of	O
the	O
devices	O
that	O
remain	O
supported	O
,	O
nearly	O
all	O
,	O
except	O
the	O
Lumia	B-Application
640	I-Application
and	O
its	O
XL	O
variant	O
,	O
had	O
originally	O
come	O
with	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
instead	O
of	O
Windows	B-Protocol
Phone	I-Protocol
8.1	I-Protocol
.	O
</s>
