Bought this for my daughter. Luckily I checked to make sure it was working before she took it home. Product had no power, i know when you buy a remanufactured PC, they basically go through them and fix any issues they have and refresh them back to factory settings. I was thinking it was the power supply but wasn't sure. I emailed the company (Christmas Day) and they replied within a couple hours, I really did not want to send the whole unit back, told them what i thought the issue was and they replied back, saying because of the Holiday they could not send a new one out until Monday. Understandable, Felt really bad my daughter could not take it home with her. The following day i remember my Laptop was the same make, So i figured i would try the power supply from that just to check. PC power right up, and ran with no flaws. The reason for the 5 stars, Excellent Customer service, I wasn't expecting a response for a few days. I had the new power supply within 4 days. I will not hesitate to do business with this company i the future. Thank you for the fast response.