I can not get development license for windows 8.1 error 0x8024500C

The OS of my computer is Windows 8.1 Pro and my IDE is VS2015 Professional. My computer has network connectivity My Windows is updated, I executed VS with Admin privileges, also I opened power Shell to execute Show-WindowsDeveloperLicenseRegistration. Altough all of this, the development license is not installed. Any ideas? Thanks.

The error 0x8024500C means WU_E_REDIRECTOR_CONNECT_POLICY - Connections to the redirector server are disallowed by managed policy. So you have applied some Windows Update group policies which prevent the connection to the MS page to get the license.