A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hello,
Thank you for posting your query in Microsoft Office community.
I understand your concern and will help you.
I appreciate your efforts in providing screenshot of your issue.
The OneNote version that you are using offline is a free version that is available in Windows store. This version of OneNote has limited options and features when compared to OneNote web application and Office OneNote.
When you go to OneNote.com it gives an option to open instead of download because you have OneNote already installed. This free OneNote is the same that is available through Windows store.
If you want to use OneNote with full features offline, you need buy one of the Office product in the following link which comes along with other Office application like Word, Excel, and PowerPoint etc.
https://products.office.com/en-in/buy/compare-microsoft-office-products
Hope it helps. If you have any other quires related to Office products, feel free to post.
Thank you.