Do you use OneNote at all. If not then in Control Panel and Uninstall programs you can remove it from there or you can tell windows NOT to load it when windows starts.
For this you want to click on:
Windows Start button
click on Run and now type MSConfig and press the Enter Key
Click on Startup
Now Scroll thru the Startup Menu and when you find reference to OneNote un-check it.
Once that is done Click on Apply and then OK.
Now MSConfig will display another Window asking for either Restart or Exit without Restart. If you have any other program running just hit Exit and close those other programs. OneNote will not be disabled until a Windows Reboot is done.
Good Luck and 73 de Steve KB6HOH email@example.com