This refurbished computer is ready to use straight out of the box. It has gone through a thorough and rigorous refurbishing process as well as Quality Control Testing. First, we erased all of the previously stored data according to DOD standards. Then, we replaced any failing or bad hardware including the hard drive, memory, and capacitors. We have verified that all of the ports and connectors are in proper working order. Save Time with the freshly installed digital product key for Windows 10 operating system. No more keying in 25 tiny, hard see, characters, or loading time to activate. It will automatically activate once the license agreement is accepted with the click of a mouse. We are one of the few who are actually Microsoft Authorized to refurbish these machines. Many of the others are just Microsoft Registered. These sellers aren't able to offer the same level of quality. Buy with confidence from the No. 1 Microsoft Authorized Refurbished in the United States.