Microsoft Onenote Portable Portable

Microsoft does not offer an official "Portable" version of OneNote.

It is important to clarify that

Mobile and Web:

Standalone apps for iOS and Android, and a browser-based version at OneNote.com , provide the highest degree of device-independent portability. Microsoft Onenote Portable

2.2 OneNote for Windows 10/11 (The Store App)

• Access via https://onenote.com or through Office.com.
• Pros: No install, works on any device with a browser, sync via OneDrive.
• Cons: Some advanced offline features and integrations unavailable.

OneNote Portable refers to a portable (USB/flash-drive) installation or a lightweight, standalone way to run Microsoft OneNote without a full desktop install—commonly using OneNote for Windows 10 (app) or the OneNote for Microsoft 365/OneNote 2016 portable setups created by users. Official portable builds are not provided by Microsoft; best practice is to use OneNote’s official apps or the web version for portability. Microsoft does not offer an official "Portable" version