You can look up your OneDrive version—use the steps below for Windows and Mac.
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Select the cloud icon in the taskbar. A blue cloud icon will open OneDrive for work or school, and a white cloud icon will open OneDrive for home.
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Select Help & Settings.
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Select Settings > About.
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Under About Microsoft OneDrive, the build number will indicate if the architecture is not 32-bit (eg. "64-bit", "ARM64", or "Preview").
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On the menu bar at the top of the screen, select the cloud icon. A blue cloud icon will open OneDrive for work or school, and a white cloud icon will open OneDrive for home.
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Select Help & Settings > Preferences.
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Select About, and under About Microsoft OneDrive the build number will indicate if the architecture is "Standalone", "Apple silicon", or "Preview".