Dell OptiPlex Desktop Computer - Intel Core i5-3470 3.20 GHz, 8GB RAM, 500GB Hard Drive, Windows 10 Professional - Mini-tower Microsoft has discontinued mainstream support of Windows 7. This product will arrive upgraded to Windows 10. Intel Core i5-3470 3.20GHz Quad-Core Processor with Turbo Boost up to 3.6GHz 6MB Smart Cache 8GB DDR3 SDRAM 500GB SATA Hard Drive