How does the user exit reduced functionality mode?
There are several remedies available depending on the circumstances that have occurred. These include entering a new product key, obtaining a new product key, or re-entering the original product key to activate. Volume licensing customers can return to normal Windows operating mode by connecting to a Key Management Service KMS service to automatically renew the activation or obtain a Multiple Activation Key MAK. If the system has failed validation, the user will be provided with information on why the copy of Windows is not genuine, as well as resources for getting a genuine copy. At any time in the process, users can contact Microsoft support for additional help.
