Hi, We are Matthew and Austin. The computers we sale are refurbished by reapplying new high performance thermal paste, ensuring they are free from accumulated dust and testing all aspects for proper functionality. We also clean installing windows 10 and apply all updates so you don't have to. We take pride in offering the best of an item that you could get. While we can not accept returns, you can message us anytime for tech support, troubleshooting and advice.