Recently, several users reported that their OneNote app was giving a name error when trying to create a new blank notebook. We looked into this issue and found that this error can occur for several reasons, including an outdated version of OneNote and a corrupt OneNote installation.

If you’ve encountered a problem like this, you’ve come to the right place, as this guide will give you detailed information on how to resolve the issue.

What causes the OneNote “Invalid Notebook Name” error?

The “Invalid Notepad Name” error can occur in the OneNote Desktop version for several reasons. For example, a corrupted Office or OneNote installation. This is one of the most common causes of this error. However, it is not the only reason. Outdated OneNote and some malfunctions are two of the other reasons mentioned. Other possible causes are as follows:

How to fix the OneNote error “Invalid notebook name”?

Upgrade OneNote to the latest version

  1. Open the OneNote application where the error occurred.
  2. Then click File on the top ribbon menu, then click Account on the vertical menu on the left.
  3. While in the Account menu, click the Office Updates drop-down menu, and then click Update Now in the list of available options.
  4. If a new version of the application is found, follow the instructions on the screen to complete the installation of the new version.
  5. Restart your computer and make sure the problem is resolved the next time you start it.

Restoring the OneNote app

  1. Open the Run dialog box.
  2. Type appwiz.CPL and press Enter.
  3. Search for Microsoft Office.
  4. Right-click on it.
  5. Click Edit.
    Select Quick repair.
  6. Click Restore.
  7. Reboot your computer.
  8. If the quick fix doesn’t work, follow the same procedure, but select Repair Online.
  9. Reboot your computer and see if the error persists.

Stop the OneNote application process in Task Manager

  1. Close the Microsoft OneNote application first.
  2. On a Windows 10 computer, launch Task Manager.
  3. Click the Processes tab.
  4. Find Microsoft OneNote and select it.
  5. Click the End Task button.
  6. On a Mac, click the Apple menu.
  7. Click the Force Quit section.
  8. Select Microsoft OneNote.
  9. Click the Force Quit button.

Frequently Asked Questions

  1. Launch the Control Panel and click Programs and Features.
  2. Then select Office/Microsoft 365 and click the Edit button.
  3. You now have two options: perform a quick repair or a detailed online repair.
  4. Choose the first option.

  1. Open the app settings and go to the Applications section.
  2. A list of installed apps will appear.
  3. Select OneNote from the list and click on Advanced Settings.
  4. Now click on the Reset button.
  5. A confirmation dialog will appear. Click the Reset button again to confirm.

Navigate to the OneNote notebook you want to rename, right-click it and select Rename. In the Rename dialog box, type a new notebook name and click Save.