Some Windows devices might include a graphics processor that supports DirectX 9. Some games and programs might require DirectX 10 to provide superior performance and graphics.
Some Windows 8.1 features, such as touch and snapping apps side by side, might require advanced or additional hardware.
Windows Media Center isn't included in Windows 8.1. DVR functionality might require additional hardware and isn't available in all countries. DVD codecs aren't included in Windows 8.1. Watching DVDs with Windows 8.1 requires separate playback software.
Some apps sold separately.
Internet access fees or other service charges might apply.
The following features are available only in Windows 8.1 Pro and Windows 8.1 Enterprise:
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BitLocker and BitLocker To Go
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Remote Desktop Host
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Domain join
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Connect to a network projector
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Offline files
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Sync Center
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Location-aware printing
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Network location aware services
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Presentation Settings
