|You should have EXPORTED a backup PST file from Outlook on that drive while you were running Windows on it, then IMPORT that file into your new Outlook.|
(it's called "Backing Up" by the way, something many people seem to not bother with these days, then wish they had when the hard drive fails).
Anyways, all is not necessarily lost. Search for a file named OUTLOOK.PST on that drive and copy it to your desktop. Now open Outlook and IMPORT it via File >> Import & Export