if you purchased a download direct from TurboTax, log into your account and download it again. If you purchased a download from another retailer, contact that retailer and see what their policy is regarding secondary downloads, I think most will allow it. If you purchased a CD, reinstall from the CD. If you purchased a CD and then threw the CD away after installing it, you will have to contact customer support by phone and see if they will do anything for you.
