windows 8 all version with key download free

ISO images

An ISO image must be converted into installation media stored on a DVD or a USB flash drive. Instructions are provided on this page. Developer tools are available for download from Windows Dev Center.

Important: If you decide to go back to your previous operating system, you'll need to reinstall it from the recovery or installation media that came with your PC, which is typically DVD media. If you don’t have recovery media, you might be able to create it from a recovery partition on your PC using software provided by your PC manufacturer. Check the support section of your PC manufacturer’s website for more information. After you install Windows 8, you won’t be able to use the recovery partition on your PC to go back to your previous version of Windows. 

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64-bit (x64)                    Download (3.3 GB)                    Sha 1 hash — 0xD76AD96773615E8C504F63564AF749469CFCCD57

32-bit (x86)                    Download (2.5 GB)                    Sha 1 hash — 0x8BED436F0959E7120A44BF7C29FF0AA962BDEFC9

Product Key:   TK8TP-9JN6P-7X7WW-RFFTV-B7QPF

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System Requirements

Windows 8 Release Preview works great on the same hardware that powers Windows 7:

• Processor: 1 gigahertz (GHz) or faster
• RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
• Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)
• Graphics card: Microsoft DirectX 9 graphics device with WDDM driver

Additional requirements to use certain features:

• To use touch, you need a tablet or a monitor that supports multitouch.
• To access the Windows Store and to download and run apps, you need an active Internet connection and a screen resolution of at least 1024 x 768.
• To snap apps, you need a screen resolution of at least 1366 x 768.
• Internet access (ISP fees might apply)

Asus GTX 690

Specifications

Graphics Engine	NVIDIA GeForce GTX 690
Bus Standard	PCI Express 3.0
Video Memory	GDDR5 4GB
Engine Clock	GPU Boost Clock : 1019 MHz GPU Base Clock : 915 MHz
CUDA Core	3072
Memory Clock	6008 MHz ( 1502 MHz GDDR5 )
Memory Interface	512-bit
Resolution	DVI Max Resolution : 2560x1600
Interface	DVI Output : Yes x 1 (DVI-D), Yes x 2 (DVI-I) HDMI Output : Yes x 1 (via DVI to HDMI adaptor x 1 ) Display Port : Yes x 1 (Mini DP)
Accessories	1 x Power cable 1 x DVI to HDMI adaptor
Software	ASUS Utilities & Driver
Dimensions	11 " x 4.4 " x 1.9 " Inch
Note	*Note that the actual boost clock will vary depending on actual system conditions. For more information, please visit http://www.geforce.com/

Specifications

Display	Panel Size: Wide Screen 24.1"(61.13cm) 16:10 Panel Type : IPS True Resolution : 1920x1200 Pixel Pitch : 0.270mm Brightness(Max) : 300 cd/㎡ ASUS Smart Contrast Ratio (ASCR) : 80000000:1 Viewing Angle (CR≧10) : 178°(H)/178°(V) Response Time : 6ms (Gray to Gray) Display Colors : 16.7M
Video Feature	Trace Free Technology SPLENDID Video Intelligence Technology SPLENDID Video Preset Modes : 6 Modes Color Temperature Selection : 4 Modes Color Accuracy : △E≦ 5 Gamma adjustment : Yes (Support Gamma 2.2/1.8 ) Color Adjustment : 6-axis adjustment(R,G,B,C,M,Y) QuickFit (modes) : Yes ( Modes) Picture-in-Picture Picture-by-Picture HDCP support
Convenient Hotkey	SPLENDID Video Preset Mode Selection Auto. Adjustment Input Selection QuickFit Dual Customizable OSD Shortcuts
I/O Ports	Signal Input : HDMI , D-Sub, DisplayPort, DVI-D Audio Output : HDMI 1.3 Earphone jack : 3.5mm Mini-Jack USB Port(s) : 1 x upstream, 4 x downstream
Signal Frequency	Analog Signal Frequency : 30~83 KHz(H)/ 50~76 Hz(V) Digital Signal Frequency : 30~83 KHz(H)/ 50~76 Hz(V)
Power Consumption	Power Consumption(Typical):<75W Power Saving Mode:≦1W Power Off Mode:0W (hard switch ) Voltage:100–240V, 50/60 Hz
Mechanical Design	Chassis Colors : Black Tilt : -5°~+20° Swivel : Yes Pivot : Yes Height Adjustment : Yes VESA Wall Mounting : 100x100mm
Security	Kensington lock
Dimensions	Phys. Dimension with Stand(WxHxD):557.2x416.3x235mm Phys. Dimension without Stand(WxHxD):557.2x362.8x62mm(For VESA Wall Mount) Box Dimension (WxHxD):681x439x292mm
Weight	Net Weight (Esti.):6.4kg Gross Weight (Esti.):9.9kg
Accessories	Cable tie DVI cable VGA cable Power cord DisplayPort cable USB 3.0 cable Quick start guide Support CD Warranty Card Color pre-calibration report
Regulation Approval	TCO 5.2, UL/cUL, CB, CE, ErP, FCC, CCC, TUV-GS, TUV-ERGO, ISO9241-307, BSMI, Gost-R, C-Tick, VCCI, PSB, NOM, J-MOSS, RoHS, Windows 7 WHQL, Mac Compliance, Energy Star