I downloaded the zip format of bitcoin-qt.
Then I launched bitcoin-qt.exe to create all the files / folders on %App Data%/bitcoin

There's already a wallet.dat that got created as well. So I closed the application. Then renamed the wallet.dat that got created and copy in my wallet. I then relaunched the application.
Is that not how it's done? Will I need to run bitcoin-qt.exe -rescan from command prompt?

Thanks!