Install or reinstall OneNote for Windows – Microsoft Support

If you need to install or reinstall the OneNote desktop app on Windows (formerly called “OneNote 2016”), do the following:

Note: If you use Microsoft 365 or Office 2019 at your work or school and your software is controlled by an IT administrator, you may need to ask them to make OneNote available to you.

After you’ve finished installing OneNote, it should be automatically associated (or re-associated) with your currently activated Microsoft 365 or Office 2019 license.

Note: If you installed OneNote before you install and activate Microsoft 365 or Office 2019, then the end-user license that appears in OneNote will display as “Home and Student.” As soon as you’ve activated your edition of Microsoft 365 or Office 2019 and then restart OneNote, your license will be applied to OneNote, even though the default license for it may still be displayed as “Home and Student.” As long as your edition of Microsoft 365 or Office 2019 is properly activated, OneNote will have all of the capabilities that require a license.