How to Delete a Notebook in OneNote (And What You Should Know Before You Do)

Deleting a notebook in OneNote isn't complicated — but it works differently depending on which version of OneNote you're using, which device you're on, and whether the notebook lives in the cloud or locally on your machine. Get the steps wrong and you might end up with orphaned files, lingering sync errors, or a notebook that reappears like nothing happened.

Here's what's actually going on under the hood, and how to approach deletion cleanly.

OneNote Notebooks Aren't Just Files — They're Synced Containers

Before anything else, it helps to understand what a OneNote notebook actually is. Unlike a Word document sitting in a folder, a OneNote notebook is essentially a live container — a collection of sections and pages that OneNote keeps synced, either locally or through OneDrive (Microsoft's cloud storage service).

When you "delete" a notebook, you're doing one of two things:

• Closing it in OneNote (removing it from your app's notebook list)
• Deleting the underlying file or cloud folder (permanently removing the content)

These are separate actions, and confusing them is where most people run into trouble. Closing a notebook in OneNote doesn't delete its data. Deleting it from OneDrive or your file system does.

The Two Versions of OneNote: Why It Matters

Microsoft currently maintains two versions:

The steps to delete — or close — a notebook differ slightly across these versions. The core logic stays the same: close it in the app first, then delete the source if you want it gone permanently.

How to Close a Notebook in OneNote (Windows App)

Closing removes the notebook from your sidebar without deleting any data. The notebook file stays in OneDrive or on your local drive.

1. Open OneNote.
2. In the left panel, right-click the notebook you want to remove.
3. Select "Close This Notebook."
4. The notebook disappears from your list immediately.

That's it — the content is still intact wherever it's stored. You can re-add it anytime by opening OneNote, going to File > Open, and navigating back to the file or OneDrive location.

How to Permanently Delete a OneNote Notebook

This is where device and storage type determine your steps.

If the notebook is stored in OneDrive (most common)

1. Go to onedrive.live.com and sign in.
2. Navigate to the Documents folder (or wherever OneNote stores its files — look for a folder ending in .one or simply named after your notebook).
3. Right-click the notebook folder and select Delete.
4. Empty your OneDrive Recycle Bin if you want it fully gone.

🗑️ OneNote notebooks stored in OneDrive are organized as folders containing .one section files. The whole folder represents the notebook.

If the notebook is stored locally on your PC

1. First, close the notebook in OneNote using the steps above.
2. Open File Explorer and locate the notebook folder (commonly in Documents > OneNote Notebooks).
3. Delete the folder — this removes all sections and pages permanently.
4. Empty the Recycle Bin to complete the deletion.

On a Mac

1. Right-click the notebook name in the sidebar and select Close This Notebook.
2. To delete permanently, open Finder and navigate to the OneDrive folder where the notebook is stored, then delete the folder there.

In OneNote Online (browser)

The web version doesn't give you a direct "delete notebook" button. You'll need to delete it via OneDrive directly — same process as the OneDrive steps above.

What Happens to Shared Notebooks?

⚠️ If the notebook you're deleting is shared with other people, deleting it from OneDrive removes access for everyone — immediately. There's no grace period and no automatic notification sent to collaborators.

If you're the owner of a shared notebook, consider:

• Notifying collaborators before deletion
• Exporting a copy first (File > Export in the desktop app)
• Checking whether anyone is actively using the notebook

If you're a participant (not the owner), closing the notebook on your end only removes it from your view — it doesn't affect anyone else.

Deleted Notebook Still Showing Up?

This is a common sync quirk. If a notebook appears to return after you've removed it, the likely causes are:

• Sync delay — OneNote re-syncs and re-adds notebooks it can still "see" in OneDrive
• Multiple accounts — The notebook belongs to a different Microsoft account signed into OneNote
• Incomplete deletion — The OneDrive folder wasn't deleted, so OneNote keeps finding and reopening it

The fix is usually making sure the deletion happened at the source (OneDrive or the local folder), not just within the OneNote app itself.

The Variable That Changes Everything

Which exact steps apply to you depends on a combination of factors: which version of OneNote you're running, where the notebook is actually stored, whether you share it with others, and whether you want to archive a copy before removing it.

Someone running OneNote 2016 with local notebooks on a work laptop has a completely different workflow than someone using the Windows 11 OneNote app with everything saved to a personal OneDrive. The mechanics are consistent — close first, delete the source second — but the exact path through menus and file systems shifts based on your setup.