This article describes an Windows 10/11 activation Error code 0x80072F8F. If more no of activation are being done using the same windows activation product key, it may cause windows product activation issues. Another code explained along with this above Windows Activation Error code 0xC004B008. If the windows activation server denies the activation code entered, this could result in the above windows activation error code 0x80072F8F. Common issues related to activation are an unauthorized key entry.