Are you encountering sync issues with Microsoft OneNote due to 0xE00015E0 and 0xE0000796 errors? To resolve these OneNote errors, refer to this guide from MiniTool System Booster for effective solutions.

OneNote is a highly flexible and comprehensive note-taking application, offering detailed organization, a generous free plan, and numerous features. It’s also widely appreciated for its ability to manage notes, PDFs, images, and more.

What Triggers OneNote Error 0xE00015E0 and 0xE0000796?

Occasionally, you might encounter error codes or messages indicating that syncing has failed in OneNote. However, there are always ways to overcome these problems. In the following section, we’ll walk you through how to fix OneNote error 0xE00015E0 and 0xE0000796.

Error 0xE00015E0 and 0xE0000796 in OneNote typically mean there isn’t enough space on your device or notebook to sync a section. Additionally, notebooks saved in OneDrive have a file size limit of 2GB if stored on OneDrive or SharePoint.

The good news is that these errors can be resolved by following the correct procedures outlined below.

How to Fix OneNote Not Enough Space or Quota Exceeded Issue?

As per Microsoft Support, the "not enough space" error (0xE00015E0) may appear when storage capacity is exhausted. This could be due to large files or backups. Therefore, optimizing or deleting large notebook backups is recommended. Follow these steps to address the syncing problem:

Step 1. Locate the OneNote Files

Part of the Microsoft Office suite, OneNote is a robust tool for taking notes. On Windows 11/10, OneNote files can be stored in multiple locations depending on how they were created and where they’re being accessed from.

To fix OneNote error 0xE00015E0, first determine whether the notebook is stored locally or via OneDrive/SharePoint.

Locally, OneNote files are kept in a folder located at C:\Users\username\Documents\OneNote Notebooks.

Alternatively, if the files are linked to your Microsoft account, you can access them from any internet-connected device and share them easily. These files reside in the OneDrive\Documents\Onenote Notebooks folder. Simply sign into your Microsoft account and navigate to the OneDrive folder to locate the OneNote Notebooks directory.

Step 2. Optimize Device Storage

To tackle OneNote error 0xE00015E0 and 0xE0000796, start by optimizing the notebooks:

1. Open OneNote, go to the File tab, and click Options in the bottom-left corner.

2. In the OneNote Options window, choose Save & Backup > Optimize All File Now. This process may take some time.

Alternatively, adjust the number of backup copies retained in the same settings to reduce storage usage.

If this doesn't work, proceed with the fixes tailored to different notebook locations.

#OneNote Files Stored Locally

When notebooks are on your local machine, here are two options to free up space:

Option 1. Remove Large Backup Files

Check your backup files on Windows and delete those occupying excessive space:

1. Press Win E to open File Explorer.

2. Enter %localappdata% in the navigation bar and press Enter.

3. Navigate to Microsoft > OneNote.

4. Double-click the 16.0 folder and then open the Backup folder.

5. Delete unnecessary files or folders to free up space.

Option 2. Use MiniTool System Booster

For cleaning up unwanted files, consider using a PC cleaner like MiniTool System Booster. Its Deepclean feature scans and safely removes junk files, helping recover valuable disk space with minimal effort.

Here's how to use it:

1. Download, install, and launch MiniTool System Booster.

2. From the Performance page, expand the Performance Home menu and select Deepclean.

3. Click START CLEAN to perform five cleanup tasks sequentially:

• NetBooster – enhances and releases hidden internet speed.
• Internet Cleanup – clears browsing history, downloads, cached data, cookies, etc.
• Windows Cleanup – deletes temporary files, log files, and empties Recycle Bin.
• Registry Cleanup – repairs invalid or outdated registry entries.
• Memory Mechanic – boosts RAM performance by closing resource-heavy processes.

4. Follow the on-screen instructions to complete each task. Once finished, your system will feel refreshed and operate more efficiently.

#OneNote Files Synced via Microsoft Account

If your notebooks are synced through OneDrive, insufficient cloud storage could trigger the 0xE0000796 error in OneNote.

1. Check if the notebook exceeds the 2GB file size limit. Right-click the file and view its properties to check its size.

2. Visit the OneDrive website to see how much storage remains available on your Microsoft account or work/school account.

Bottom Line

In summary, this article outlines two key approaches to resolving OneNote error 0xE00015E0 and 0xE0000796. Among the solutions, MiniTool System Booster stands out as an efficient way to reclaim disk space and enhance overall PC performance.

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