If you see the "This file is from a different version of OneNote" error while opening OneNote notebooks, these fixes will help you.

OneNote cache is located in the AppData > Local folder. To find the location of the OneNote cache on your system, open OneNote and go to File > Options > Save & Backup.

The seemingly innocuous Microsoft OneNote file has become a popular file format used by hackers to spread malware and breach corporate networks. Here's how to block malicious OneNote phishing ...