How to download Windows 8.1 installation media without entering the product key or create bootable USB flash drive for Windows 8.1 with Windows Installation Media Creation Tool?

There are many useful tools and ways to create installation media (DVD or USB flash drive) for Windows 8.1
One of them is Windows Installation Media Creation Tool.
It's an official Microsoft tool and it has a huge benefit:
it allows to download official Windows 8.1 installation ISO images in over 35 languages and both 32-bit and 64-bit without having to enter the product license key.
This was no possible before.
It also allows to create bootable USB flash drive.
Of course later, at the begining of the installation process, you'll have to enter the Windows 8.1 product license key.
Another benefit: to create installation media for Windows 8.1 is allowed on a Windows 7 workstation as well not just on Windows 8.1.

Limitations compared with other similar softwares:
-You can’t use Windows Installation Media Creation Tool to download Windows 7 ISO from Microsoft. Also, this tool can’t be used to download Windows 8 ISO files.
-Supported Windows 8.1 versions:
Windows 8.1
Windows 8.1 N
Windows 8.1 Pro
Windows 8.1 Pro N
Windows 8.1 Single Language editions
-It doesn't work behind proxy server.

It's simple to use:
Just download Windows Installation Media Creation Tool-t from Microsoft.
After downloading click mediacreationtool.exe, choose the right language, Windows 8.1 version and pick 32-bit or 64-bit version.
You can download Windows 8.1 ISO image, then you can burn it to DVD, or download ISO and the software will create a bootable Windows 8.1 USB flash drive.
Minimum size of USB drive is more than 4 GB.
The whole procedure is automatic, but i made some screenshots.
First about dowloading ISO image, then creating a bootable USB flash drive.


Downloading DVD ISO:

Create bootable Windows 8.1 installation USB flash drive:

Source: INTO Windows

Function keys to enter the BIOS Boot Menu

System BIOS boot keys for laptops and desktops

Related article: Laptops Recovery Function Keys

Manufacturer	Type	Models	Boot Menu
Acer			Esc, F12, F9
Acer	netbook	Aspire One zg5, zg8	F12
Acer	netbook	Aspire Timeline	F12
Acer	netbook	Aspire v3, v5, v7	F12
Apple		After 2006	Option
Asus	desktop		F8
Asus	laptop	VivoBook f200ca, f202e, q200e, s200e, s400ca, s500ca, u38n, v500ca, v550ca, v551, x200ca, x202e, x550ca, z202e	Esc
Asus	laptop	N550JV, N750JV, N550LF, Rog g750jh, Rog g750jw, Rog g750jx	Esc
Asus	laptop	Zenbook Infinity ux301, Infinity ux301la, Prime ux31a, Prime ux32vd, R509C, Taichi 21, Touch u500vz, Transformer Book TX300	Esc
Asus	notebook	k25f, k35e, k34u, k35u, k43u, k46cb, k52f, k53e, k55a, k60ij, k70ab, k72f, k73e, k73s, k84l, k93sm, k93sv, k95vb, k501, k601, R503C, x32a, x35u, x54c, x61g, x64c, x64v, x75a, x83v, x83vb, x90, x93sv, x95gl, x101ch, x102ba, x200ca, x202e, x301a, x401a, x401u, x501a, x502c, x750ja	F8
Asus	netbook	Eee PC 1015, 1025c	Esc
Compaq		Presario	Esc, F9
Dell	desktop	Dimension, Inspiron, Latitude, Optiplex	F12
Dell	desktop	Alienware Aurora, Inspiron One 20, Inspiron 23 Touch, Inspiron 620, 630, 650, 660s, Inspiron 3000, X51, XPS 8300, XPS 8500, XPS 8700, XPS 18 Touch, XPS 27 Touch	F12
Dell	desktop	Inspiron One 2020, 2305, 2320, 2330 All-In-One	F12
Dell	laptop	Inspiron 11 3000 series touch, 14z Ultrabook, 14 7000 series touch, 15z Ultrabook touch, 15 7000 series touch, 17 7000 series touch	F12
Dell	laptop	Inspiron 14R non-touch, 15 non-touch, 15R non-touch, 17 non-touch, 17R non-touch	F12
Dell	laptop	Latitude c400, c600, c640, d610, d620, d630, d830, e5520, e6320, e6400, e6410, e6420, e6430, e6500, e6520, 6430u Ultrabook, x300	F12
Dell	laptop	Precision m3800, m4400, m4700, m4800, m6500, m6600, m6700, m6800	F12
Dell	laptop	Alienware 14, Alienware 17, Alienware 18, XPS 11 2-in-1, XPS 12 2-in-1, XPS 13, XPS 14 Ultrabook, XPS 15 Touch,	F12
eMachines			F12
Fujitsu			F12
HP	generic		Esc, F9
HP	desktop	Pavilion Media Center a1477c	Esc
HP	desktop	Pavilion 23 All In One	Esc
HP	desktop	Pavilion Elite e9000, e9120y, e9150t, e9220y, e9280t	Esc, F9
HP	desktop	Pavilion g6 and g7	Esc
HP	desktop	Pavilion HPE PC, h8-1287c	Esc
HP	desktop	Pavilion PC, p6 2317c	Esc
HP	desktop	Pavilion PC, p7 1297cb	Esc
HP	desktop	TouchSmart 520 PC	Esc
HP	laptop	2000	Esc
HP	notebook	Pavilion g4	Esc
HP	notebook	ENVY x2, m4, m4-1015dx, m4-1115dx, sleekbook m6, m6-1105dx, m6-1205dx, m6-k015dx, m6-k025dx, touchsmart m7	Esc
HP	notebook	Envy, dv6 and dv7 PC, dv9700, Spectre 14, Spectre 13	Esc
HP	notebook	2000 - 2a20nr, 2a53ca, 2b16nr, 2b89wm, 2c29wm, 2d29wm	Esc
HP	notebook	Probook 4520s, 4525s, 4540s, 4545s, 5220m, 5310m, 5330m, 5660b, 5670b	Esc
HP	tower	Pavilion a410n	Esc
Intel			F10
Lenovo	desktop		F12, F8, F10
Lenovo	laptop		F12
Lenovo	laptop	ThinkPad edge, e431, e531, e545, helix, l440, l540, s431, t440s, t540p, twist, w510, w520, w530, w540, x140, x220, x230, x240, X1 carbon	F12
Lenovo	laptop	IdeaPad s300, u110, u310 Touch, u410, u510, y500, y510, yoga 11, yoga 13, z500	Novobutton
Lenovo	laptop	IdeaPad P500	F12 or Fn + F11
Lenovo	netbook	IdeaPad S10-3	F12
Lenovo	notebook	g460, g470, g475, g480, g485	F12
NEC			F5
Packard Bell			F8
Samsung			F12, Esc
Samsung	netbook	NC10	Esc
Samsung	notebook	np300e5c, np300e5e, np350v5c, np355v5c, np365e5c, np550p5c	Esc
Samsung	ultrabook	Series 5 Ultra, Series 7 Chronos, Series 9 Ultrabook	Esc
Samsung	ultrabook	Ativ Book 2, 8, 9	F2
Sharp
Sony		VAIO Duo, Pro, Flip, Tap, Fit	assistbutton
Sony		VAIO, PCG, VGN	F11
Sony		VGN	Esc, F10
Toshiba	laptop	Kira, Kirabook 13, Ultrabook	F12
Toshiba	laptop	Qosmio g30, g35, g40, g50	F12
Toshiba	laptop	Qosmio x70, x75, x500, x505, x870, x875, x880	F12
Toshiba		Protege, Satellite, Tecra	F12
Toshiba		Equium	F12

Source: CraftedFlash