H&R BLOCK Tax Software Deluxe 2016 Type: Tax Version: Deluxe Operating Systems Supported: Windows Packaging: Retail System Requirements: Windows: Vista, Windows 7 / 8.1 / 10 Internet Explorer 8 or higher Mac: OS 10.6.8 or higher Safari 5.1 or higher Hardware: Internet connection 170 MB of hard disk space 2X CD-ROM drive 1024 x 768, SVGA color monitor Ink jet or laser printer Speakers and sound card