Entire Notebook Missing! Why? Help!

[Vanessa]

I spent hours of my day today on a research project that I've been using
OneNote for, and just now when I opened up OneNote to review some of my work,
I found MY ENTIRE RESEARCH NOTEBOOK MISSING! What happened??? This is
devastating!

 

[Mike]

I suspect you closed your notebook. To open it again, look in your
documents folder and then a sub folder OneNote Notebooks. Otherwise look in
the backup location. To find the backup location go to Tools>>Options>>Save
and it will show you the location of the backups. The default is to save
once daily as I recall.

Michael

 

[John Guin [msft]]

You can also check in file | open backup.