According to Microsoft, the OneNote sync error 0xE40105F9 occurs when you are using an outdated version of OneNote which is no longer supported by the Microsoft ...

According to Microsoft, this error occurs when OneNote cannot refresh your notes automatically. This is a temporary error, hence, you need to wait for some time and ...

Microsoft has released a new patch for OneNote 2016 that fixes a crash related to syncing notebooks from newer versions of Microsoft OneNote. Microsoft has said that the update available in the ...

Android is making notetaking apps a more central part of the experience, and now Microsoft OneNote is preparing support for the new functionality. First appearing in Android 14 and potentially making ...

Additionally, you can visit the Microsoft Community forums to see if other users are encountering the same issue. If the servers are down or undergoing maintenance, you can wait for them to stabilize, ...

Microsoft is aggressively pushing users off older OneNote app by degrading its performance, slowing sync speeds starting June 2025. Legacy OneNote for Windows 10 reaches end of support in October 2025 ...

OneNote is like the forgotten step-child of Microsoft Office. It’s rarely mentioned alongside Word, Excel, and PowerPoint as one of the core applications of Office, yet it’s very popular, and ...