At the end of July 20 16, Microsoft has stopped giving genuine licenses to users who have upgraded to win 10. Now, you can either pay for the genuine license, or Baidu search "KMSpico" as a KMS activation tool to activate (this is 180-day cyclic activation, which can be automatically activated after the task plan is automatically established, and the effect is similar to permanent activation. People who don't like it can create new scheduled tasks every six months.