When troubleshooting OneNote’s performance or synchronization issues, first sync and back up your data. In Windows desktop OneNote, navigate to “File” > “Options” > “Save & Backup”, locate the cache folder, then close OneNote before deleting its contents. Reopen OneNote for a refreshed experience.
The cache holds local notebook content, including changes that may not have synced yet. Deleting it can lose those changes. Use manual cache clearing only as a last resort for a specific problem after checking your backups and online notes; it is not routine maintenance or a guaranteed fix for synchronization errors.
Let’s get into details about how to clean the OneNote cache.
Contents
Easy Steps for Clearing OneNote Cache
These steps apply to the OneNote desktop app on Windows, not Mac, mobile, or the retired OneNote for Windows 10 app. Before manually clearing files, try closing a fully synced cloud notebook through File > Info > Settings > Close beside that notebook, then restart OneNote. This releases its local cached copy without browsing the cache folder; reopen the notebook from OneDrive or SharePoint when needed.
1. Backup your OneNote data: Before deleting cache files, sync your notebooks and confirm that your latest edits appear in OneNote for the web. In Windows desktop OneNote, use File > Options > Save & Backup > Back Up All Notebooks Now and confirm completion. Keep a separate copy of any unsynced notes. If you cannot verify that your notes are safe, stop here.
2. Close all OneNote instances: Close extra OneNote windows on the Windows PC whose cache you plan to clear. You will briefly reopen the app to locate its cache in the next step, then close it again before touching the files. Closing OneNote on other devices does not clear this PC’s cache.
3. Access OneNote options: Open OneNote on your Windows PC, and navigate to “File” > “Options” > “Save & Backup.” The screenshot below shows an older Windows desktop layout. If your app has no File tab, do not apply this folder procedure to a different OneNote version.
4. Locate cache folder: Under the “Cache File Location” section, you’ll find the path to your cache folder. Copy this path, and close the OneNote application.
5. Delete cache files: Open Windows File Explorer, and paste the cache folder’s path into the address bar. You’ll find numerous cache files in the cache folder. After verifying step 1, select and delete only the files inside the identified cache folder. Do not delete the Backup folder or your original notebook files. The screenshot shows the older desktop cache folder; use the actual location reported by your own app.
6. Reopen OneNote: Launch the OneNote application once again. The cache files will be recreated as notebooks reopen. You may need to open cloud notebooks again from OneDrive or SharePoint and wait for their content to download. Check your latest pages against the browser copy; clearing local files cannot recover edits that never synced.
Tips and Best Practices
Once you’ve cleared the OneNote cache, a few simple habits will help protect your notes and troubleshoot recurring problems. Keep backups and check sync errors before changing local files. Here are some recommendations to keep your OneNote application functioning optimally:
- Regular cache maintenance: Keep fully synced cloud notebooks closed when you no longer need them offline. Avoid scheduled deletion of cache files; the cache supports local access to your notes.
- Update the application: Ensure that your OneNote application is always up-to-date, as updates usually include performance enhancements and bug fixes.
- Manual sync checks: Manually sync your notebooks now and then to ensure all changes are properly synchronized across devices. You can do this by going to “File” > “Info” > “View Sync Status” and clicking on “Sync Now.”
- Monitor cache folder size: Keep track of the cache folder size when investigating local storage use. A large cache can reflect open notebooks and attachments. Close unused, fully synced cloud notebooks before considering another manual reset.
- Split large notebooks: Large notebooks with numerous sections and pages can strain the application’s performance. Splitting them into smaller, more manageable notebooks can help improve OneNote’s functionality.
- Use stable internet connections: Ensure a stable internet connection while working on OneNote, especially when syncing shared notebooks, to prevent sync conflicts and errors.
Why You Should Clean OneNote Cache
The cache behind the scenes has a real effect on how Microsoft OneNote behaves day to day, both in raw speed and in how reliably your notes stay in sync.
Some of the top reasons to clear the OneNote cache include the following:
- Enhancing application performance: A cache reset may help when local cached data is involved in a fault. Cache size alone does not establish the cause of slow performance, and downloading notebooks again can take time.
- Resolving synchronization errors: Cache issues can prevent OneNote from syncing your changes with the online or shared notebooks properly, which may lead to lost or outdated information. Clearing the cache can force the application to download a fresh copy of the notebook and resynchronize, but only the synced online copy can be downloaded. Account, permission, storage-quota and service problems need their own fixes.
- Freeing up storage space: Over time, cache files may take up a significant amount of storage on your device. Closing unused, fully synced cloud notebooks can free up some storage space. Space may be used again when you reopen and download them.
- Troubleshooting software glitches: Corrupted cache files can cause unexpected errors or issues while using OneNote. Clearing the cache can help resolve certain software glitches and restore the app’s functionality.
Conclusion
Clearing the OneNote cache can help resolve issues such as syncing errors, slow performance, and freezing when cached data is the cause. By following the instructions provided in this article, you can carefully clear the cache in Windows desktop OneNote after safeguarding your notes, then check whether the original problem is resolved. Best of luck!
