Microsoft Visual Studio Pro 2013 Upgrade Processor: 1.60 GHz or faster Operating System: Windows 7 SP1 (x86 and x64), Windows 8 (x86 and x64), Windows 8.1 (x86 and x64), Windows Server 2008 R2 SP1 (x64), Windows Server 2012 (x64), Windows Server 2012 R2 (x64) Browser: This version of Visual Studio works best with Internet Explorer 10 or higher. If Internet Explorer 10 is not installed on your computer, some features might not work as expected. Video Card: DirectX 9-capable video card running at 1024 x 768 or higher display resolution