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Microsoft Onenote Won't Open Mac

When using OneNote for Mac version, MacBook Pro crashed. After rebooting MacBookPro, it reported Microsoft OneNote had caused the crash. Then every time when i open OneNote, app crashed immediately.
Reinstalling OneNote Mac app via Appstore or clearing caches, does not fix the issue. OneNote keeps crashing on start.
Solution:-
1. Delete the following folders on your Mac.
~/Library/Containers/com.microsoft.onenote.mac
~/Library/Group/Containers/UBF8T346G9.Office
2. On your Mac OS X, open “Keychain Access” app and search for “MicrosoftOffice”. If OneNote app recognized that you signed in, you’ll have entry with long name. Delete it.
3. Restart your Mac computer.
4. Then try to launch OneNote app and signing in again.
SEE ALSO : How to open OneNote for Windows files in OneNote for Mac
If you find any other solution to fix “OneNote for Mac crashes on start”, inform us via comment.

Microsoft OneNote The digital note-taking app for your devices. If the Open in OneNote or Edit in OneNote command in OneNote for the web doesn’t work, it means there’s something wrong with the add-on that this command uses. There are several things you can do to get the add-on working. First of all, make sure you have Microsoft OneNote 2010 or later installed on your computer because earlier versions of OneNote won't work with this command.

If the Open in OneNote or Edit in OneNote command in OneNote for the web doesn’t work, it means there’s something wrong with the add-on that this command uses. There are several things you can do to get the add-on working.

Microsoft office signature line mac version. Create an email signature. On the Outlook menu, select Preferences. Under Email, select Signatures. Double-click Untitled, and then type a name for the signature you created. Select to add a new signature. In the Signature editor, type the text that you want to include in your signature.

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Microsoft Onenote Won't Open Mac Pro

First of all, make sure you have Microsoft OneNote 2010 or later installed on your computer because earlier versions of OneNote won't work with this command. Then check the settings for your browser in the following table.

Onenote Not Opening On Mac

Browser

Things to check

Internet Explorer

Be sure you are using 32-bit Internet Explorer. If you are using the 64-bit Internet Explorer, you won't be able to use this command.

Check your security settings

  1. Go to Tools > Internet Options, and then on the Security tab click Trusted Sites.

  2. If the security slider is at High, move it down to Medium-High.

Turn the add-on back on

  1. Go to Tools > Manage Add-ons.

  2. In the Show dropdown, choose All add-ons.

  3. Scroll through the add-ons until you see the ones from Microsoft, and click SharePoint OpenDocuments Class.

  4. Towards the bottom of the dialog box, click Enable, and then close the dialog box.

Chrome

Be sure you are using 32-bit Chrome. If you are using the 64-bit Chrome browser, you won't be able to use this command.

If you see an External Protocol Request message in Chrome, check Remember my choice for all links of this type, and then click Launch Application. The next time you use the Open in OneNote or Edit in OneNote command, it should work with no issues.

Firefox

Be sure you are using 32-bit Firefox. If you are using the 64-bit Firefox browser, you won't be able to use this command.

Turn the add-on back on

  1. Go to the Firefox dropdown, click Add-ons, and then go to Plugins.

  2. Look for any Microsoft Office plugins that say (disabled) after the name.

  3. Set the plugins to Ask to Activate or Always Activate.

Mac OS X

If you use Safari or Firefox and your Mac is running an older version of OS X, such as Lion or Mountain Lion, switch to 32-bit mode:

  1. Close the browser.

  2. Go to the Finder, go to Applications, and select the Safari or Firefox icon.

  3. In the browser, go to File > Get Info, and check Open in 32-bit mode.

  4. Close the browser and open it again.

Microsoft internet explorer download for mac. If you still need help getting notebooks to open on your Mac, visit the OneNote for Mac forum at https://answers.microsoft.com/en-us/office/forum/onenote_mac.