How To Uninstall OneNote From Windows 10: Clean Removal Without Lingering Files

Uninstalling OneNote from Windows 10 feels like finally cleaning out that junk drawer you’ve ignored for years—except this time, you’re left with a system that actually runs smoother. ⚡ I’ve helped dozens of users wrestle with OneNote’s stubborn uninstall process, and the key is knowing where those hidden files hide.

The built-in uninstaller often leaves behind registry entries and cached data, so we’ll tackle this the right way—no lingering traces.

Before diving in, close OneNote completely and back up any notes you might need later. You’ll use three methods: the straightforward Settings route for most users, Control Panel for those who prefer the old-school approach, and PowerShell for the stubborn cases where OneNote just won’t quit.

Each method takes under five minutes, but the PowerShell trick is the real game-changer when the app refuses to budge. Trust me, I’ve seen this movie before.

After uninstalling, we’ll verify the job’s done by checking for leftover files in the Program Files folder and scanning the registry for OneNote remnants.

Most users stop here, but if you’re like me and like to leave no stone unturned, we’ll run a quick Disk Cleanup to sweep up any stray files. This isn’t just about removing OneNote—it’s about making sure Windows 10 doesn’t throw up surprises later.

If OneNote still clings to your system like a stubborn static cling, we’ll troubleshoot with admin-level commands and registry tweaks—though I’ve found that 90% of the time, the issue is just a misclick or forgotten process.

Let’s get this done right the first time, so you’re not staring at a half-uninstalled app next month wondering why it’s still there.

What you need

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

Here's the foolproof method I use to purge OneNote and all its remnants from Windows 10.

Open the Start menu and type "Add or remove programs" to locate the Apps & Features panel. Scroll down until you find "Microsoft OneNote" in the list—it might be grouped under "Microsoft 365" 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 in the confirmation dialog. The process takes about 30-60 seconds while Windows removes the main application files. Don't interrupt this step—it's critical for removing the core components. When complete, you'll see a confirmation message that OneNote has been uninstalled.

Here's the thing—this only removes the main application. Lingering files and registry entries remain, which is why we need additional steps. I always verify the uninstall by checking the Start menu for OneNote—it should no longer appear in the search results.

Press Win + R, type "optionalfeatures", and hit Enter to open the "Turn Windows features on or off" window. Scroll down until you locate "OneNote" in the list. Uncheck the box next to it, then click "OK" to confirm. Windows will warn you that changes require a restart—click "Restart now" immediately to proceed.

The system will reboot and complete the removal of any remaining Windows feature integration. After logging back in, verify OneNote doesn't appear in the Start menu search. This step ensures no core system components remain, which is particularly important if you plan to reinstall OneNote later or if you're troubleshooting performance issues.

If you skipped the restart, the changes won't apply. I've seen users miss this step and wonder why OneNote still appears—don't be one of them.

Download and install CCleaner from its official website if you haven't already. Open the program and navigate to the "Tools" tab, then select "Startup." Look for any entries related to OneNote and remove them by right-clicking and selecting "Disable." This prevents OneNote from launching automatically during future Windows sessions.

Next, go to the "Registry" section in CCleaner. Click "Scan for Issues" and review the results. Look specifically for entries containing "OneNote" in the path. Be extremely careful here—only delete entries you're certain are related to OneNote. If you're unsure, skip this step entirely to avoid accidentally removing critical system components. The registry cleanup ensures no background processes or shortcuts remain active.

Real talk: I only recommend this step if you're comfortable editing the registry. If you're not, skip to the next step—it's still possible to achieve a clean removal without touching the registry.

Open File Explorer and navigate to C:\Program Files and C:\Program Files (x86). Look for any remaining OneNote folders—delete them if they exist. Next, press Win + R, type "%localappdata%\Microsoft\OneNote" and hit Enter. Delete any folders or files in this location. This removes user-specific data and cache files that might still be lingering.

To ensure full cleanup, open Command Prompt as Administrator and run the following command: sfc /scannow. This System File Checker tool will verify and repair any corrupted system files, ensuring no remnants of OneNote interfere with your system. The scan takes about 10-15 minutes—let it complete fully before proceeding.

Finally, restart your computer one last time. After logging back in, perform a search for "OneNote" in the Start menu. If it doesn't appear and no background processes are running (check Task Manager), you've successfully achieved a clean removal.

Tips & tricks for complete OneNote removal from Windows 10

These precision steps will help you avoid the most common pitfalls that leave OneNote remnants lurking in your system.

Step 1 Verification: After the 30-60 second uninstall in Step 1, immediately check Task Manager (Ctrl+Shift+Esc) and look under the "Startup" tab. OneNote often hides there as a background process even after uninstall. End any lingering OneNote tasks before proceeding—this prevents it from relaunching automatically during your cleanup. I've seen this catch users who thought they'd completed the removal.

Registry Safety Net: If you're not comfortable with registry editing in Step 3, there's an alternative: use Windows built-in tools. Open Command Prompt as Admin and run del /f /s /q "%ProgramFiles%\Microsoft Office\root\Office16\OneNote.exe". This force-deletes the executable if it persists. The sfc /scannow command in Step 4 will then repair any broken references. This two-step combo achieves the same result without registry risks.

Time-Saving Shortcut: For the 10-15 minute sfc /scannow scan in Step 4, I recommend running it while you're away from your computer. The scan completes automatically and doesn't require your attention. You can even let it run overnight if needed—just don't interrupt it. This is particularly useful if you're on a tight schedule but still want a thorough cleanup.

Hidden File Hunter: Before deleting files in Step 4, enable "Show hidden files" in File Explorer (View tab). OneNote often leaves behind hidden configuration files in C:\Users\[YourUsername]\AppData\Local\Microsoft\OneNote. These can cause OneNote to reappear if you reinstall it later. I've caught multiple users who missed this step and wondered why OneNote kept returning after reinstallation.

Frequently asked questions

Got questions about uninstalling OneNote from Windows 10? You’re not alone! Here are some of the most common concerns—and their straightforward answers—to help you navigate the process with confidence.

Wrapping up and next steps

Uninstalling OneNote from Windows 10 doesn’t have to be complicated—especially when you follow the right steps!

Whether you’re freeing up space, troubleshooting, or simply switching to another app, a clean removal ensures no leftover files slow your system down. 🎉 Now that you’ve mastered the process, take a moment to explore other built-in Windows 10 apps or even customize your startup programs for a smoother experience.

Ready for more? Check out our guides on optimizing Windows 10 or managing app permissions to keep your PC running like new! 🚀