Here's what it takes to upgrade to Windows 10 on your PC or tablet:
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Latest OS: Make sure you're running the latest version—either Windows 7 SP1 or Windows 8.1 Update.
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Need the latest version? Download Windows 7 SP1Â or Windows 8.1 Update.
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Processor: 1 gigahertz (GHz) or faster processor or SoC
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RAM: 1 gigabyte (GB) for 32-bit or 2 GB for 64-bit
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Hard disk space: 16 GB for 32-bit OS or 20 GB for 64-bit OS
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Graphics card: DirectX 9 or later with WDDM 1.0 driver
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Display: 800 x 600