How can I restore old mails?

[goldenmount]

I use Outlook 2007 that has (e-mail address removed) as e-mail account.
Last week my computer got a virus and I had no chance to recover.
So I formated my computer and reinstalled outlook 2007.
But old mails' all gone and can't restore them.
I think Yahoo mail can't do anythng(because Outlook 2007 took all mails out
of him).
Do you have any solution to restore mails?

 

[Pat Willener]

Before formatting & reinstalling Windows you should really backup your
data, i.e. your PST files in which you had your emails & contacts
stored. If you didn't save your data, then there is really nothing you
can do after formatting your HD.