You cannot install a 64-bit version of OneNote if you have a 32-bit version of another Office app (like Excel or Word) already installed. Ensure your XML configuration matches your existing system architecture.
You may still need an internet connection to activate the software initially. microsoft onenote offline installer
Once you have successfully downloaded the offline installation file, follow these steps to install the software: Step 1: Mount or Extract the Installation File You cannot install a 64-bit version of OneNote
Download the package once to install OneNote on multiple computers without repeating large downloads. microsoft onenote offline installer