How To Clear OneNote Cache (Easy Guide)

To enhance OneNote’s performance and fix synchronization issues, first back up your data. Close OneNote, navigate to “File” > “Options” > “Save & Backup”, locate the cache folder, and delete its contents. Reopen OneNote for a refreshed experience.

Clearing the OneNote cache can be easily done by navigating to the OneNote cache folder, and then selecting and deleting the cache files. This process not only improves the performance of the application but also helps resolve common issues like synchronization errors.

Let’s get into details about how to clean the OneNote cache.

Easy Steps for Clearing OneNote Cache

By following these simple steps, you can effectively delete the cache files and refresh your OneNote experience:

1. Backup your OneNote data: Before deleting cache files, creating backup copies of your notebooks is crucial to prevent accidental data loss. You can do this by exporting each section or the entire notebook to a local or cloud storage location.

2. Close all OneNote instances: Ensure that OneNote is closed on all devices connected to your account to prevent sync conflicts during cache clearing.

3. Access OneNote options: Open OneNote on your device, and navigate to “File” > “Options” > “Save & Backup.”

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. Select and delete all of these files.

6. Reopen OneNote: Launch the OneNote application once again. The cache files will be automatically recreated, and your notebooks should be synchronized with the latest changes.

Tips and Best Practices

After clearing the OneNote cache, it’s essential to adopt some tips and best practices to maintain a smooth and trouble-free experience with OneNote. Here are some recommendations to keep your OneNote application functioning optimally:

  • Regular cache maintenance: Periodically check and clear your OneNote cache to prevent excessive accumulation of unnecessary cache files, which can slow down the application and cause errors.
  • 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 navigating to “File” > “Info” > “View Sync Status” and clicking on “Sync Now.”
  • Monitor cache folder size: Keep track of the cache folder size to identify cache buildup, which can affect performance. If the cache size rapidly increases, consider clearing it more frequently.
  • 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

OneNote cache plays a significant role in the performance and functionality of the popular note-taking application, Microsoft OneNote.

Some of the top reasons to clear the OneNote cache include the following:

  • Enhancing application performance: OneNote’s responsiveness and overall speed can be directly impacted by the size of the cache. Removing outdated or unnecessary cache files can help optimize the app’s performance and provide a more seamless note-taking experience.
  • 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 addresses such errors by forcing the application to download a fresh copy of the notebook and resynchronize.
  • Freeing up storage space: Over time, cache files may take up a significant amount of storage on your device. Clearing the cache can free up some storage space, ensuring your device functions optimally.
  • 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.


Clearing the OneNote cache can help resolve various issues such as syncing errors, slow performance, and freezing. By following the instructions provided in this article, you can easily clear the cache in OneNote and get back to using it without any hindrances. Best of luck!