Win8.1 has a solution that cannot be completed by Preview installation

        
Win8.1 Prompt Preview installation can not be completed
1, open the network and sharing center, and then go to "Change adapter settings";
2, right click "“ Ethernet" Click <;Properties" (Ethernet is the network card you use for Internet access, if you use wireless, please select the wireless network card);
2, then select Internet Protocol Version 4 (TCP/IPv4), and double-click;
3 In the Internet Protocol Version 4 (TCP/IPv4) Properties window, select “Use the following DNS server address";
4, then enter 4.2.2.2 (8.8.) in the preferred DNS server“ 8.8 also try), after the point to determine;
5, after completing the settings, reconnect to the network, and then re-download the update.