Windows 8 Minimum System Requirements

To run Windows 8, Microsoft recommends using a computer that has at least: 1 GHz or faster processor 1 GB RAM (32-bit) or 2 GB RAM (64-bit) 16 GB available hard disk space (32-bit) or 20 GB (64-bit)

DirectX 9 graphics device with WDDM 10 or higher driver This is the minimum required for Windows 8 to run, and there are some few caveats you need to be aware of: Windows 8 have a minimum 1024 × 768 screen resolution. If you attempt to run the new Windows 8 apps with less than this resolution (e.g. 1024 × 600, 800 × 600,)you’ll receive an error message. Using the 32-bit version of Windows 8 on a system with 1 GB of RAM will work. For a fast experience, using at least 2 GB of RAM is recommended Using Windows 8 on a single-core processor running at 1 GHz is possible but won’t be a great experience. Using at least a dual-core processor running at 1 GHz is recommended.