How Prevent The Local Administrator To Read The Content Of The Database

Hi everybody,

I have an application in dotnet that uses sql express.
This application will be deployed on the user computer and I have to find a way to prevent the user to be able to read the data and access the structure of the database.

Is there a way to do this ? Even if the user is a local administrator of the computer ?

That's a difficult question, isn't it ? ;-))))

Thank you for your possible ideas,

Ciao,

Aurore