Dell Latitude E6520 Laptop Intel Core i5 2.60 GHz, 8192MB RAM, Genuine Windows 7 Pro (64-bit) dell e6520 laptop 8gb ram 320gb hdd i5 2540m 2.6ghz Microsoft is discontinuing offering Windows 7; this product is sold with either Windows 7 or Windows 10. Microsoft license terms for Windows 10 will include the downgrade rights to Windows 7