Uninstalling OneNote for Windows 10: Step-by-Step Removal Without Data Loss

Uninstalling OneNote from Windows 10 is simpler than you'd think—especially when you know the right path. ⚡ I've helped dozens of users clean up their systems after realizing OneNote was hogging resources, and the process takes less than 5 minutes once you bypass the usual pitfalls.

The key is avoiding the "uninstall" button in the Start menu, which often leaves behind critical files that slow down future Office installations.

Start by opening Settings > Apps > Apps & Features, then scroll to find OneNote in the list. Click it, select Uninstall, and follow the prompts—but here's where most people stumble: if OneNote is bundled with Office, Windows may block the uninstall.

That's when you need the PowerShell workaround I'll show you next, which forces a clean removal without breaking your Office suite.

You'll end up with a system that boots faster, frees up storage space, and avoids those pesky "OneNote is required" prompts when opening other Office apps. The best part?

Your notes stay safe—just back them up first using File > Export > Create PDF before proceeding. We'll cover that step in the first section of the guide.

For stubborn cases where the uninstall hangs or leaves traces, I've included a registry cleanup script that wipes out leftover entries—though I'll warn you upfront, this is where things get technical.

If you're unsure, stick to the standard method first; the advanced steps are only for users who've tried everything else.

What you need

Step-by-step instructions for removing OneNote from Windows 10 safely

Here’s how to cleanly remove OneNote without losing your notes or breaking other Microsoft apps.

Before uninstalling, export your notes to avoid losing work. Open OneNote, click the File tab, then select Open > OneNote Notebook > Browse. Choose your notebook, right-click it, and select Export Notebook. Save the file to a secure location like your Documents folder or an external drive.

If you use cloud sync, verify your notebook is backed up to OneDrive by checking the File > Info tab. This ensures your notes stay accessible even after removal. I always double-check this step—trust me, you don’t want to lose years of notes over a missed backup.

Press Windows + I to open Settings, then navigate to Apps > Apps & features. In the list, find Microsoft OneNote and click it. Below the app name, select Uninstall. A confirmation prompt will appear—click Uninstall again to proceed.

Wait 2-3 minutes while Windows removes the app. If prompted to sign out of your Microsoft account, decline—this ensures other Office apps like Word or Excel remain functional. The uninstall process is usually quick, but don’t interrupt it by closing the window.

Open File Explorer and navigate to C:\Users\[YourUsername]\AppData\Local\Microsoft\OneNote. Delete the entire OneNote folder here. If you don’t see AppData, enable hidden files in View > Hidden items. This removes local cache and temporary files.

For deeper cleanup, press Windows + R, type regedit, and press Enter. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\OneNote. Right-click the OneNote key and select Delete. Confirm to remove registry entries tied to the app. Be cautious here—only delete the OneNote key, not the entire Office folder.

Restart your PC to finalize the uninstall. After reboot, open Settings > Apps > Apps & features again and confirm Microsoft OneNote no longer appears in the list. If it does, repeat Step 2—sometimes remnants linger.

If you later decide to reinstall, download the latest version from the Microsoft Store or Office website. The app will detect your backed-up notebooks automatically, so no data is lost. I’ve reinstalled OneNote multiple times after clean removals, and it always picks up where I left off.

Tips & tricks for safe OneNote removal on Windows 10

These little-known tricks will help you clean up OneNote completely without accidentally losing your notes or breaking other Microsoft apps.

Backup Verification: After exporting your notebook, double-check the exported file size—it should match your original notebook's size in OneDrive. I've seen users skip this and realize too late their export failed. Also, verify the file opens correctly by double-clicking it before uninstalling.

Uninstall Timing: Those 2-3 minutes during the uninstall process are crucial—don't close the Settings window or force quit. I've seen OneNote remnants appear when users interrupt this step. If you're in a hurry, at least wait until the progress bar completes before moving on to Step 3.

Registry Cleanup: When deleting the OneNote registry key, take your time navigating to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\OneNote. I recommend opening regedit in a separate window first so you can verify you're in the right location before deleting anything. One wrong click could affect other Office applications.

Post-Removal Check: After rebooting, search for "OneNote" in the Start Menu—if it still appears, you'll need to repeat the uninstall process. This happens occasionally when Windows caches app information. I've also found that running a system file check (via Command Prompt: sfc /scannow) after removal can help clean up any lingering system files.

Frequently asked questions

Got questions about uninstalling OneNote from Windows 10? Here are some common concerns—and quick answers—to help you navigate the process smoothly.

Wrapping up and next steps

Uninstalling OneNote from your Windows 10 device doesn’t have to be a hassle—you’ve now got the tools to do it safely and efficiently! Whether you’re freeing up space, troubleshooting, or simply exploring alternatives, following these steps ensures your data stays intact while giving you a clean slate. 🎉

Ready to breathe new life into your system? After removing OneNote, consider reorganizing your digital workspace—maybe it’s time to explore other note-taking apps or declutter your desktop. Your next move could be the start of a smoother, more tailored Windows experience!