Uninstall OneNote for Windows 10: Fully Remove Without Lingering Files or Cache

Uninstalling OneNote from Windows 10 is simpler than it seems—but only if you know where to look. ⚡ I’ve helped dozens of users completely remove OneNote, including my dad’s work laptop, and the key is targeting the right uninstall paths.

Most guides miss the leftover cache folders and registry entries that keep OneNote’s ghost lingering in the background.

The process starts with checking if OneNote is tied to Office 365—uninstalling it separately could break your Office suite. I recommend backing up any critical notes first, since some uninstall methods don’t preserve local data.

Once you confirm it’s standalone, you’ve got three reliable methods: Settings, Control Panel, or command line. Each works differently, so pick based on your comfort level.

After uninstalling, you’ll need to verify the job’s done right—check Program Files, AppData, and the registry for leftover files. I’ve seen cases where OneNote’s update service kept running silently, so a quick Task Manager check seals the deal.

The command-line method is my go-to for stubborn installs, but it requires admin rights and a careful eye for errors.

If you hit snags—like a frozen uninstaller or permission errors—don’t panic. I’ll walk you through the fixes, including how to force-close stubborn processes and clean up registry keys the safe way. This isn’t just about removing OneNote; it’s about making sure your system stays clean afterward.

What you need

Step-by-Step instructions for completely removing OneNote from Windows 10

Here's the foolproof method to purge OneNote and all its remnants from your system.

Open the Start menu and type "Add or remove programs" to locate the Apps & Features panel. Scroll down until you find Microsoft OneNote—it's typically listed under Microsoft Store apps. Click on it once to select, then click the Uninstall button that appears above the list.

Windows will prompt you to confirm. Click Uninstall again, then wait for the process to complete. This removes the main application but leaves behind configuration files and cached data. I always verify the uninstall by checking the Start menu—OneNote should no longer appear in the All Apps list.

Press Win + R, type regedit, and hit Enter to open the Registry Editor. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\OneNote (for Office 2016/2019) or HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\OneNote (for Office 2013). Right-click the OneNote folder and select Delete.

Next, go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall and look for any OneNote-related entries. Delete them one by one. Be extremely careful here—only delete keys with "OneNote" in their name. Once done, close the Registry Editor. This step ensures no leftover settings interfere with future Office installations.

Open File Explorer and navigate to C:\Users\[YourUsername]\AppData\Local\Microsoft\Office\16.0\OneNote. Delete the entire OneNote folder if it exists. Then go to C:\Program Files\Microsoft Office\root\Office16 and delete ONENOTE.EXE if it remains.

For deeper cleanup, use the built-in Windows Search feature. Type OneNote in the search bar, then click See more results at the top. Delete any remaining shortcuts or residual files. I always run a quick Disk Cleanup afterward to clear temporary files that might reference OneNote.

Reboot your system to ensure all processes are terminated. After logging back in, open the Microsoft Store and search for OneNote. It should no longer appear as an installed app. Also, check the Start menu and Task Manager—no OneNote processes should be running.

For thoroughness, I recommend installing a lightweight app monitor like Process Explorer (from Microsoft's Sysinternals suite) and scanning for any lingering OneNote-related processes. If everything checks out, you've successfully removed OneNote and its remnants from Windows 10.

Tips & tricks for completely removing OneNote from Windows 10

Here's what I've learned after helping dozens of users completely purge OneNote from their systems—these tricks ensure you don't miss any hidden remnants.

Backup First: Before making any registry changes in Step 2, create a system restore point. Press Win + R, type rstrui, and follow the prompts. This safety net comes in handy if something goes wrong during the registry cleanup. I've seen registry edits cause unexpected behavior when users don't have this backup.

Registry Editor Safety: When deleting entries in Step 2, take your time—don't rush. I recommend opening two Registry Editor windows side by side: one for the HKEY_CURRENT_USER path and one for the HKEY_LOCAL_MACHINE path. This visual comparison helps you spot any remaining OneNote keys you might have missed. Also, consider exporting the registry before making changes by right-clicking the folder and selecting Export.

Hidden File Visibility: In Step 3, you'll need to make hidden files visible before deleting the OneNote folder. Press Alt while in File Explorer to reveal the menu bar, then go to View → Hidden items. This ensures you don't accidentally skip any hidden configuration files that might still reference OneNote. I've seen users miss these files and have OneNote shortcuts reappear after reboot.

Process Explorer Alternative: If you don't want to install Process Explorer for Step 4, Windows Task Manager has a built-in alternative. Open Task Manager (Ctrl + Shift + Esc), go to the Details tab, and sort by Image Name. Look for any processes containing "OneNote" in the name. This method works just as effectively without requiring additional software.

Frequently asked questions

Got questions about uninstalling OneNote from Windows 10? You’re not alone! Here are answers to the most common concerns to help you navigate the process smoothly.

Wrapping up and next steps

Uninstalling OneNote from Windows 10 is simpler than you might think—just follow the steps we’ve outlined, and you’ll fully remove the app, its lingering files, and cache without a trace.

Whether you’re freeing up space, troubleshooting, or switching to another app, taking control of your system is always a smart move! 🎉

Now that you’ve successfully cleaned up, why not explore other ways to optimize your Windows 10 experience? Try uninstalling other built-in apps or clearing system junk next—your PC will thank you! 🚀