The installer is usually an ISO or EXE file that can be saved to a USB drive or network share. You aren't reliant on a stable internet connection during the installation process. Once you have the file, you can install it anytime, anywhere.
You cannot simply search for "OneNote offline installer" without understanding the current state of Microsoft's note-taking ecosystem. Confusingly, there are of OneNote for Windows, and each has a different method for offline installation. microsoft onenote offline installer
Microsoft OneNote Offline Installer Report A Microsoft OneNote offline installer allows users to install the application without an active internet connection during the installation process The installer is usually an ISO or EXE
But for the , the Microsoft OneNote Offline Installer is a lifesaver. It turns a frustrating, hour-long download into a 2-minute local execution. You cannot simply search for "OneNote offline installer"