Whether you have a desktop computer, laptop, Windows OS, Mac, or a smart device, you can download and install TurboTax on them. To download the software, you can visit TurboTax’s official website and install it by following the on-screen prompts. If you have the TurboTax installation CD, simply insert it into the optical drive of your PC and open the setup file to install the software. Once installed, you can file your state and federal taxes from the comfort of your home or while on the go.