How To Uninstall OneNote For Windows 10: Safe System Cleanup Without Leftovers

Uninstalling OneNote from Windows 10 can feel like trying to remove a stubborn sticker—except this time, you actually want it gone. ⚡ I’ve helped dozens of users clean up their systems after realizing they never used OneNote, and the process is simpler than most expect, though registry leftovers can sneak up if you’re not careful.

The key is knowing where to look and what to avoid touching.

Most users can remove OneNote in under five minutes through Windows’ built-in tools, but if you’re tech-savvy, a clean uninstall with registry tweaks takes another ten minutes and ensures no traces linger.

I’ll walk you through both methods—plus what to check afterward to confirm it’s truly gone. No admin rights? We’ll handle that too.

You’ll end up with a leaner Windows 10 install, free from OneNote’s background processes and startup clutter. The best part? No data loss if you follow the steps, and your Start Menu will finally feel uncluttered. Let’s get started—just remember, backups are your friend if you’re nervous.

Here’s where it gets interesting: Some users report OneNote reappearing after updates, so I’ll share how to lock it down permanently. Trust me, once you see how clean your system feels, you’ll wonder why you kept it around.

What you need

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

Here's how to fully remove OneNote without leaving behind registry clutter or hidden files.

Press the Windows key + I to open Settings, then navigate to Apps > Apps & features. Scroll down until you find Microsoft OneNote in the list.

Click on it, then select Uninstall. Windows will prompt you to confirm—click Uninstall again. The process takes about 10-15 seconds and removes the main application, but not all associated files.

Here's the thing—this alone won't clean up everything. OneNote ties into the Microsoft Store and leaves registry entries, so we need to dig deeper.

Open the Microsoft Store by clicking its tile on the Start menu. In the search bar at the top, type OneNote and press Enter. Select the OneNote for Windows 10 entry from the results.

Click the three dots (...) next to the download button, then choose Uninstall. This removes the Store version completely, but we still need to check for leftover components.

I always recommend this extra step because the Store version sometimes installs additional background services that persist even after uninstalling from Settings.

Press Windows key + R, type regedit, and hit Enter to open the Registry Editor. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\OneNote.

Right-click the OneNote folder and select Delete. Confirm the deletion when prompted. This removes user-specific settings and preferences that might cause conflicts later.

Next, go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall and look for any entries containing "OneNote." If found, right-click and delete them as well.

Open File Explorer and navigate to C:\Program Files\Microsoft Office\root\Office16. Look for any OneNote.exe or OneNote-related folders and delete them.

For user-specific files, go to C:\Users\[YourUsername]\AppData\Local\Microsoft\OneNote and delete the entire OneNote folder. If you don't see the AppData folder, enable hidden items in File Explorer's View menu.

Real talk: Skipping this step can leave behind cached data that might cause OneNote to reinstall automatically or create conflicts with other Office apps.

Press the Windows key and type OneNote. If it doesn't appear in the search results, the uninstall was successful. For extra verification, open Task Manager and check the Startup tab to ensure no OneNote processes are listed.

Reboot your computer to finalize the cleanup. After restarting, check again to confirm no residual processes or files remain.

You've got this—your system should now be completely free of OneNote, ready for a fresh start if needed.

Tips & tricks for safe OneNote removal without leftovers

Here's what I've learned after helping dozens of users completely purge OneNote from their systems—these tricks ensure nothing sneaky remains behind.

Backup First: Before making any registry changes in Step 3, create a system restore point. Press Windows key + R, type create, and hit Enter. This lets you roll back if anything goes wrong during cleanup. I've seen registry edits cause more headaches than they solve when done without safety nets.

Registry Search Tip: In Step 3, after deleting the OneNote folder under HKEY_CURRENT_USER, do a quick search for "OneNote" in the Registry Editor's search bar. This catches any hidden entries you might miss—like old update paths or service references. I found leftover entries in HKEY_CLASSES_ROOT that caused OneNote to reappear after uninstall.

File Explorer Hidden Items: When deleting files in Step 4, enable hidden items in File Explorer by clicking the View tab and checking Hidden items. This reveals the AppData folder where OneNote stores user-specific files. Skipping this step can leave behind cached notebooks or temporary files that might trigger automatic reinstalls.

Startup Verification: After rebooting in Step 5, open Task Manager and check the Startup tab one more time. Even if OneNote doesn't appear in search results, background services sometimes linger. I've seen OneNote processes hiding under names like "Microsoft Office Update" that need manual disabling through Task Manager's Startup tab.

Frequently asked questions

Got questions about uninstalling OneNote from Windows 10? You’re not alone! Here are some of the most common concerns—and clear, step-by-step answers to help you navigate the process smoothly.

Wrapping up and next steps

Uninstalling OneNote from Windows 10 doesn’t have to be a headache—you’ve got this! 🎉 By following the steps above, you’ve safely removed the app and cleaned up any lingering files, ensuring your system stays clutter-free.

Whether you’re freeing up space or switching to another tool, you’ve taken control of your digital workspace.

Now that OneNote is gone, why not explore other productivity tools or optimize your Windows 10 setup further? Check out our guides on speeding up your PC or managing startup programs for a smoother experience. Happy computing! 🚀