Dear Michi,

You are the first person who answered to this letter. Thank you.

Basically I found out no answer. Yes, you can roll back you PC but I don't thing this would do anything as you have this shared.

The only way is how to prevent this. In OneNote go to;

File -> Options -> Save and Backup

I believe you can save everything to an ext. HD but that is all I have. I have been doing other things but I have to get back to this problem. Basically I want all my Notebooks save automatically everyday and having a record so that if someone does muck it up I can go back.

I am sure there is a very easy way but I can not find it yet hence this question. If you find out the answer, please write back to me.

Cheers.