The operating system did not work as soon as I took it out of the box. I called Dell & Amazon and they pushed me to the seller. I called the seller numerous times and never got anyone to answer the phone. I also left them an email and heard nothing. Even the phone message was questionable, because the message never mentioned anyone's name.I wonder if this company is legitimate???? I saw identical adds on Amazon that had different company names as the supplier, but the adds & cost were totally identical.In addition, they don't mention that the laptops they are reconditioning and selling to you are over 5 years old....