You may need the architecture (x64/x86(x32)) of your Windows system for various apps and tools that are used for various web hosting/domain management.

To check which version of Windows you have, click the Start Menu icon:
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Type in: "This PC":

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Hit ENTER. Similar window should pop up:
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Right-click anywhere inside the window, like so:

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Click on Properties:
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Once you've done that, you will see a Window open with the information you need:

6f709302d74a9f0d23b6ec062bed1a2ed1a1789c?t=350b12e47aafb17dae82116522e02236 Your version of Windows and your architecture type are both defined here:
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And you're done! Take a look at the underlined details. Most of the time you will need the bottom lines, which define your Windows/CPU architecture type.

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