Intuit TurboTax Home & Business 2016 Fed + State + Efile for Windows - Download Type: Tax Operating Systems Supported: Windows Packaging: Download System Requirements: Processor: Pentium 4 or Later/Athlon or Later Operating System: Windows Vista (Service Pack 2 or latest) / Windows 7 (Service Pack1 or latest) /Windows 8 / Windows 8.1 / Windows 10/XP not supported. Administrative rights required RAM: 1 GB or more recommended Monitor: 1024x768 or higher recommended. Internet Connection: 56 Kbps modem (Broadband connection highly recommended). Required for product updates. Hard Disk Space: 650 MB for TurboTax (plus up to 4.5 GB for Microsoft .NET 4.5.2 client if not already installed). Third Party Software: Microsoft .NET 4.5.2 included with TurboTax Installer. Adobe Reader 11 or higher. Administrative rights required. Printer: Any Windows compatible inkjet or laser printer. CD/DVD drive required.