32-bit and 64-bit Windows: Frequently asked questions
https://support.microsoft.com/en-us/windows/32-bit-and-64-bit-windows-frequently-asked-questions-c6ca9541-8dce-4d48-0415-94a3faa2e13d
WebHow do I upgrade from the 32-bit to the 64-bit version of Windows? How can I tell if my computer is running a 32-bit or a 64-bit version of Windows? Windows 10 and Windows 8.1. Select the Start button, then select Settings > System > About . Open About settings. At the right, under Device specifications, see System type. Windows 7.
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