To install TurboTax on your computer, visit www.installturbotax.com. Log in with your Intuit account, enter your license code, and follow the on-screen instructions to download and install the software. Ensure your system meets the minimum requirements for smooth installation. Once installed, launch TurboTax, sign in, and start preparing your taxes confidently. For CD users, insert the disc and follow the setup prompts to complete installation.