Unable to search within "AppData" folder from Start Menu

Hi,

I use Outlook, and my Outlook mails are in a folder stored within the AppData folder.

I want the ability to type a keyword into the Start search box and be able to have these Outlook mails automatically included in the search results.

I have a Sony VAIO laptop, 64bit, running Windows 7.

I recently did a factory reset, and prior to the factory reset, the Outlook mails were showing up whenever I did a search from the Start menu.

Now they are not.

How can I make this happen again?

Thanks in advance for your help!