If OneNote shows error 0xe00015e0 or won’t sync your notes, don’t worry. This guide covers quick fixes, reasons behind the issue, and simple ways to repair your OneNote files.
OneNote errors 0xE00015E0 and 0xE0000796 often appear when your notes cannot sync properly between devices. In most cases, these errors happen because there is not enough storage space on your device or in your OneDrive or SharePoint account. When a notebook stored in OneDrive reaches the 2GB file size limit, OneNote cannot upload or update new content.
Sometimes, a weak internet connection, a corrupted notebook section, or a small glitch in the app can also cause the problem. Syncing across different devices, such as computers and phones, may increase the chance of these conflicts.
The good news is that these issues are not serious and can be fixed easily. Clearing some space, checking your connection, or repairing damaged sections often helps restore normal syncing in OneNote.
When your device or OneDrive runs out of space, OneNote cannot save or sync your latest notes. Each time you edit a page, the app needs extra space to store and update data. If storage is full, it shows errors like 0xE00015E0 or 0xE0000796 and stops syncing. Large notebooks, many attachments, or exceeding OneDrive’s 2GB limit often cause this issue.
To fix it, you can free up space by deleting unnecessary files. If manual cleanup feels slow or incomplete, you can use AOMEI Partition Assistant for Cleanup. This tool scans your drives for large, duplicate, or junk files and helps you remove them safely with just a few clicks. It also warns you before deleting important system files. With more free space, OneNote can sync again smoothly, and your device will perform better overall.
Free Up Disk Space To Keep Your PC Running Smoothly and Efficiently
Step 1. Install and launch AOMEI Partition Assistant for Cleanup. Click the "Clean Junk Files" tab.
Step 2. Click the "Scan Now" button to start the process of scanning junk files.
Step 3. After the scan process is finished. All system junk files (including recycle bin files, temporary files, log files, invalid shortcuts, and so on) and registry junk files (including DLL registry, system registry, and program registry) will be displayed.
Step 4. You can also click the button behind to view the junk files details.
Step 5. And, you can click the button behind to locate the file.
Step 6. By default, the program will select some junk files to clean up, for example, temporary files, log files, and so on. You can also manually check to select more or uncheck to deselect fewer listed junk files. Or, click "Select All" to select all junk files to clean up if you need to clean up all.
After selecting junk files that are not needed anymore, you can click the "Clean Now"button to start the cleanup.
Step 7. The process of the cleanup might take time, and the selected files will be cleaned up. After the process is finished, you will get a cleanup completed window displaying how many files you have cleaned and not yet cleaned.
Step 1. Install and launch AOMEI Partition Assistant for Cleanup. Click the "Delete Large Files" tab.
Step 2. You can either click "Scan System Drive" to start the scan of your system C: drive. Or, click "Custom Scan" to manually select paths to be scanned. (Here, we take the "Custom Scan" as an example.)
Step 3. After clicking "Custom Scan", all local and external drives on your PC and the common Desktop, Documents, and Downloads paths will be displayed. You can manually select paths to be scanned. Once necessary paths are added, you can click the "Scan Now" button to start the scan process.
The scan process might take time. After the scan is complete, all large files found will be listed.
You can also check the large files and click the button behind to locate them.
Step 4. Tick the files you want to delete, and then click the "Clean Now" button to start the deletion.
Step 5. The deletion might take time. After the process is finished, the selected files will be deleted, and you will get a cleaning completed window displaying how much data you deleted in total.
Step 1. AOMEI Partition Assistant for Cleanup is also the best duplicate files finder. You can initiate Find Duplicate Files. Install and launch AOMEI Partition Assistant for Cleanup. Click the "Find Duplicate Files" tab.
Step 2. Select a path to scan duplicate files. You can either click "Scan Now" to start the scan of your system C: drive. Or, click "Custom Scan" to manually select paths to be scanned. (Here, we take the "Custom Scan" as an example.)
Step 3. After clicking "Custom Scan", all local and external drives on your PC will be displayed. You can also click the "Add Path" button, and then a browse folder window will pop up. So you can add more paths on this PC, like Desktop, Downloads, and other folder paths.
Step 4. Once necessary paths are added, you can click the "Scan Now" button to start the scan process.
Step 5. The scan process might take time. After the scan is complete, all duplicate files will be listed. You can click the button behind to locate them.
Step 6. Select duplicate files to start deletion. You can either manually select duplicate files, or click the "Smart Select" button to automatically select unnecessary duplicate files to delete.
Tips: If the "Smart Select" is ticked, only the oldest duplicate file will be unticked. It means that all duplicate files except the oldest one will be ticked to delete. (The oldest file means the file that was created first. This file will not be deleted. All other duplicate files are considered copies of the oldest file. )
If you manually select all copies of duplicate files, you will get a pop-up warning window to keep at least one copy of the duplicate files. If you indeed want to delete all copies of duplicate files, you can click "OK" so all copies of duplicate files will be selected to delete.
After unnecessary duplicate files are selected, please click the "Clean Now" button to start the deletion.
Step 7. Delete successfully. The deletion might take time. After the process is finished, the selected files will be deleted, and you will get a cleaning completed window displaying how much data you deleted in total.
Freeing up and optimizing the space used by synced files can help fix OneNote sync errors. Follow these simple steps:
Step 1. Open OneNote, go to the File tab on the main ribbon, and select Options from the list.
Step 2. In the new window, choose Save & Backup.
Step 3. Under the Optimize Files section, click Optimize All Files Now, then select OK to confirm.
This process helps reduce file size and refreshes stored data, which can resolve storage or sync issues in OneNote.
One effective way to fix the OneNote sync error is to manually sync the section. Follow these steps to do it.
Step 1. Open OneNote and go to the File option in the main menu. Then choose Info.
Step 2. In the next window, check the Sync Status.
Step 3. Under Shared Notebook Synchronization, select Sync Now to start a manual sync.
This process forces OneNote to update the latest changes and helps clear temporary sync issues.
In conclusion, OneNote errors 0xE00015E0 and 0xE0000796 usually occur when there is limited storage or a syncing problem. By cleaning junk files, deleting large or duplicate files, and freeing up space with AOMEI Partition Assistant for Cleanup, you can restore smooth synchronization and improve your device’s performance. Simple actions like optimizing files or manually syncing sections can also help keep OneNote running properly. If you want to recover corrupted OneNote file, you can go there to find the solution.
Free Up Disk Space To Keep Your PC Running Smoothly and Efficiently