I had the same problem just now on OneNote 2013. Deleting the cache worked for me. Here's how I did it on Windows 7.
- Click the Windows / Start button and type
onenote /safeboot
into the run box (if you have aRun
button instead of a text box, click that first)
- Click
Delete Notebook Cache
.
OneNote should now open (and be stable). If not, try repeating this selecting Delete Settings
.