According to Microsoft, the OneNote sync error 0xE40105F9 occurs when you are using an outdated version of OneNote which is no longer supported by the Microsoft ...

In this post, we will see how to fix OneNote sync error 0xE4020045 (Unsupported Client). Because this is a OneNote sync error, you will not be able to sync your ...

Like millions of others, I have banked on OneNote as my central hub for ideas and information for what feels like forever. It’s a fantastic tool, until it suddenly isn’t. Despite being a user for all ...