This unit is as close to brand new as you can get without being Brand New sealed in the box. Everything works perfectly. I looked up how to upgrade the drive and memory on this unit and it is very easy to do. Just pop off the back panel and the memory and drive are right there. Windows 7 Lite can only access a max of 2GB, but the unit will take 4GB so you can load Windows 7 Home or Pro. The drive is a 250GB mechanical drive and this unit might do well with a 2.5" SSD. With those upgrades the unit will be much faster.