Step 3: Scroll down and find the Windows Store Apps menu. Step 1: Go to the Windows Settings and open Troubleshoot from the System menu. Microsoft offers a handy troubleshooter to fix Windows Store apps. Let Windows run the Repair tool and troubleshoot the OneNote not opening issue on Windows 10 and Windows 11. Step 5: Under the Reset menu, select Repair. Step 3: Scroll down to OneNote and click on the three-dot menu beside it. Step 2: Go to the Apps menu and open Apps & features. Step 1: Open the Settings app on Windows (use Windows + I keys).

If the OneNote app still isn’t opening for you, you can use the default Repair tool from the Windows Settings app. Those using the Microsoft 365 version of OneNote can go to File and navigate to Office Updates in the Account menu to install the latest OneNote build on the computer. Select Get Updates and update the OneNote app to the latest version. You should go to the Microsoft Store and update the app to the latest version. OneNote not opening on Windows 10 and Windows 11 might be due to an outdated build on your computer. Step 3: The process will delete the app cache and open the app on the computer. Step 2: Type OneNote / safeboot in it and hit the Enter key. Step 1: Press Windows + R keys and open the Run menu.

So let’s delete the OneNote cache from your system. Sometimes, overburdening such cache data or corrupt cache can lead to OneNote not opening on Windows 10 and Windows 11. OneNote collects the cache data in the background to make certain tasks faster in the app. Step 3: Click on OneNote and select the End task button at the bottom. Step 2: Open Task Manager and find OneNote from the Processes menu. Step 1: Press the Windows key and search for Task Manager. You should completely close the OneNote app and then reopen it. Microsoft offers a quick-note feature on OneNote and keeps running the app in the background. You can use the same steps on Windows 10 and fix the issue where OneNote is not opening on Windows. Note: The screenshots below are from the latest Windows 11 OS.

Onenote for windows 10 not syncing