Installed but never used comes with codes to install. The Intuit QuickBooks Desktop Pro 2020 Accounting DVD-ROM Retail is a professional accounting software designed for businesses. This product is specifically designed for use on Windows 8.1 Update 1 and Windows 10 operating systems. With a retail license category, this software is in English and is ideal for individuals looking to manage their finances and taxes effectively. The QuickBooks Desktop Pro 2020 model offers advanced features and tools to help users streamline their accounting processes.n