Most likely. You didn't tell us anything about your version or setup.
Assuming you are using a PST file for Outlook data storage, search for and
open each PST file on your hard drive until you find your data.

Signature
Russ Valentine
[MVP-Outlook]
> I had an issue with Outlook which instructed me to use
> detect and repair to fix the problem. However, when I did
> this, I lost all my contacts and mail messages. Is there
> any way i can retrieve them