This Dell Vostro has been upgraded to Windows 10 Pro 64 bit. It features a 2.83 GHZ Core2 Duo processor (E8300) with 6M cache. There are 4 gigs of memory (RAM) and a 250 gigabyte hard drive. The interior and all fans have been cleaned for cooler operation. A good computer for a student who requires Office. Comes with mouse, keyboard and monitor. Nothing wrong with it.