Here's the official Microsoft OneNote offline installer for Windows (standalone, not the Office suite):

But for most users, the 2016 version above is the simplest true offline installer.

Microsoft Onenote Offline Installer | TOP-RATED — BLUEPRINT |

Here's the official Microsoft OneNote offline installer for Windows (standalone, not the Office suite):

But for most users, the 2016 version above is the simplest true offline installer. microsoft onenote offline installer