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OneDrive can’t be run with elevated privileges, and you will not be able to see OneDrive menu items within File Explorer. However, the per-machine sync app installation is helpful, especially for multi-user computers and when you don’t want exe files running from the user profile. See also Unable to share OneDrive files.
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Number of items that can be synced or copied
When using http://onedrive.com OneDrive, you can only copy up to 2500 files at one time.
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