Assuming you have obtained the official ISO or IMG file from your Microsoft 365 subscription or VLSC, follow these steps:

Microsoft no longer provides a direct standalone offline installer for the new OneNote app. You would need to download the Office Deployment Tool and configure an configuration.xml file to install only OneNote from a local source.

Run the executable. It will prompt you to extract files to a folder. Choose a location on your hard drive (e.g., C:\OneNote_Offline ). Once extracted, you will see several configuration XML files ( configuration.xml ) and a setup.exe file.

OneNote’s utility is heavily tied to its "work anywhere" philosophy. Even without a constant internet connection, the desktop application allows for: Use the Office offline installer - Microsoft Support

essentially streams the software to your computer. You download a small bootstrap file (usually under 3MB), which then reaches out to Microsoft servers to download the actual application payload in the background. While this ensures you always get the latest version, it is ill-suited for: