The computer works, but there are ports on the back that were taped over by the refurbishing company as not working. Truthfully, I expected the computer to arrive in the same condition as a new one. I had to buy a couple of adapters to make it function as I needed for accessing online applications and word processing. It took some doing to adapt it to multiple display screens. However, the main display still refuses to go into sleep mode when the computer goes to sleep. Since it worked perfectly with the previous computer, I attribute it to this one.