Windows 8 System Requirements are given below:
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1 gigahertz
(GHz) or faster 32-bit (x86) or 64-bit (x64) processor
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1 gigabyte (GB) RAM (32-bit) or 2 GB RAM
(64-bit)
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16 GB
available hard disk space (32-bit) or 20 GB (64-bit)
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DirectX 9
graphics device with WDDM 1.0 or higher driver
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Taking
advantage of touch input requires a screen that supports multi-touch