Windows 7 Professional SP1 64-bit Disclaimer: Use of this OEM System Builder Channel software is subject to the terms of the Microsoft OEM System Builder License. This software is intended for pre-installation on a new personal computer for resale. This OEM System Builder Channel software requires the assembler to provide end user support for the Windows software and cannot be transferred to another computer once it is installed. To acquire Windows software with support provided by Microsoft please see our full package Retail product offerings. Bit Version: 64-bit Version: Professional System Requirements: If you want to run Windows 7 on your PC, here's what it takes: 1 gigahertz (GHz) or faster 32-bit (x86) 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM 16 GB available hard disk space (32-bit) or 20 GB DirectX 9 graphics device with WDDM 1.0 or higher driver Additional r...