How to Delete a Notebook in OneNote: What You Need to Know Before You Do It
Deleting a notebook in OneNote isn't as straightforward as hitting a delete key. Unlike most file deletions, the process varies depending on which version of OneNote you're using, where the notebook is stored, and what device you're on. Understanding how OneNote handles notebooks — and what "deleting" actually means — can save you from data loss or confusion.
What Happens When You Delete a OneNote Notebook
OneNote notebooks aren't stored like ordinary documents in a single folder. Most modern notebooks sync to OneDrive (Microsoft's cloud storage), which means deleting the notebook from within the OneNote app doesn't fully delete it — it typically just removes it from your list of open notebooks.
To permanently delete a notebook, you usually need to delete the underlying file or folder from wherever it's stored: OneDrive, SharePoint, or your local drive. This is one of the most misunderstood aspects of OneNote — the app is a viewer and editor, but storage lives elsewhere.
How to Close vs. Delete a Notebook
These two actions get confused often, and OneNote makes the distinction blurry:
- Close a notebook — Removes it from your OneNote sidebar/notebook list, but the data remains in OneDrive or on your hard drive. You can reopen it anytime.
- Delete a notebook — Permanently removes the notebook file. This cannot be undone easily unless you have a backup or OneDrive's version history available.
Most users who think they want to delete actually need to close. Know which one applies to your situation before proceeding.
Deleting a Notebook: By Platform
🖥️ OneNote for Windows 10 (the Store App)
- Right-click the notebook name in the left panel.
- Select "Close This Notebook" — this removes it from view but does NOT delete it.
- To fully delete, open OneDrive.com in a browser, navigate to the Documents folder, find the notebook folder, right-click it, and select Delete.
OneNote for Microsoft 365 / OneNote Desktop (Classic)
The classic desktop version (sometimes called "OneNote 2016" or the Microsoft 365 version) follows a similar pattern:
- Right-click the notebook in the notebook panel.
- Choose "Close This Notebook".
- Then go to File Explorer (if stored locally) or OneDrive (if cloud-synced) to delete the actual folder.
Local notebooks are stored as .one section files inside a named folder — deleting that folder removes the notebook entirely.
OneNote on Mac
- In the notebook list, Control-click the notebook name.
- Select "Close This Notebook".
- To delete, open Finder (for local notebooks) or visit OneDrive.com to delete the cloud-synced folder.
OneNote on iPhone or Android
Mobile versions of OneNote do not offer a direct delete option at all. You can close a notebook, but to delete it permanently you must:
- Use a browser to go to OneDrive.com
- Locate the notebook folder under Documents
- Delete it from there
This limitation is intentional — Microsoft treats notebook deletion as a significant action that warrants desktop-level access.
Deleting a Notebook Stored on SharePoint or Teams
If your notebook was created through Microsoft Teams or SharePoint (common in workplace or school environments), the deletion process is different and may require admin-level permissions. Notebooks tied to a Teams channel are stored in that channel's SharePoint document library. Deleting the notebook without removing the associated Teams data can cause sync errors or leave orphaned files.
In these cases, the safest path is to consult your IT administrator or use the SharePoint site's document library to manage deletion carefully.
What to Check Before You Delete 📋
| Factor | Why It Matters |
|---|---|
| Sync status | If the notebook hasn't fully synced, recent notes may not be saved elsewhere |
| Shared access | Others may still be actively using the notebook |
| Storage location | OneDrive, SharePoint, and local storage each require different deletion steps |
| OneNote version | Windows 10 app, desktop app, Mac, and mobile all handle this differently |
| Recycle Bin availability | OneDrive sends deleted items to its Recycle Bin (recoverable for ~30–93 days depending on account type) |
Can You Recover a Deleted OneNote Notebook?
If the notebook was stored on OneDrive, yes — within the recovery window. Go to OneDrive.com, click the Recycle Bin in the left panel, find the notebook folder, and restore it. This window varies: personal OneDrive accounts typically hold deleted items for 30 days, while Microsoft 365 business accounts may extend this to 93 days.
If the notebook was stored locally only and you didn't use a cloud backup, recovery becomes much harder and may require third-party file recovery tools — with no guarantee of success.
The Variable That Changes Everything
How you should approach deletion depends entirely on factors specific to your setup: whether you're on a personal or work account, which version of OneNote you're running, where the notebook data lives, and whether anyone else has access to it. A notebook on a personal OneDrive is handled very differently from one embedded in a Teams workspace or sitting on a shared company SharePoint drive.
The mechanics above cover how the process works — but which path is right depends on your own environment, permissions, and whether you genuinely need the data gone or just out of your way.