Well it's good that you know your way inside the computer, so to speak.
Something is keeping it alive? Sometimes folders need ownership acquired. Then there are the 'hidden' folders & files.
Have you ever looked at: control panel>system and security>administrative tools>computer management?
open >System Tools, open>Task Schedular, open> Task Schedular Library: You will see folders and triggers. Perhaps you will see that 'one note' info there.
or click on 'Services and Applications' Here you will see 'starts, stops and configures Windows services.
As well, there are many other folders which may contain the corresponding file that you're looking for.
With a little time & patience, you will find said file and, in any event, have a more intimate view inside your computer, which is never a bad thing; a learning experience.
Hope this helps...
Regards,