This Lenovo ThinkPad T61 laptop is installed with a brand new Genuine copy of Windows 10 with license and Certificate of Authenticity (COA). Intel Core 2 Duo 1.8GHz processor and DVD+CDRW drive. It includes a 14.1" Display, AC Adapter, Charger, and battery. The ThinkPad T61 also includes 802.11b/g wireless WiFi, Three USB ports, VGA out, speaker and headphone ports, firewire, PC Card slot, and 10/100/1000 Gigabit ethernet.