If Open In Onenote Command Doesnt Work. If the Open in OneNote command doesnt work enable the add-on. Even with elevated privileges.
Wait for the Dictate button to turn on and start listening. - Manually launched all the OneNote Notebook onetoc2 files to link with the OneNote 2016 was able to launchSync. To disable it everywhere including in Outlook on the web and in Outlook on Mac you need to disable it in Manage Add-ins in your account online.
If issue still persists I kindly suggest you to follow the steps mentioned by Ruxo in the following thread which discusses about how to uninstall OneNote.
Insert punctuation at any time by saying them explicitly. In Windows Vista or Windows 7 click Start type regedit in the Start Search box and then press Enter. Wait for the Dictate button to turn on and start listening. Open IEInternet OptionsTrusted sitessitesInput the site URLAdd.