recently some users reflect that when the download will be prompted to "Windows 8.1 Preview installation can not be completed", how to do ?
Troubleshooting Update prompts Preview installation failed to complete the operation steps:
1, at the same time press win key +r, enter ncpa.cpl in the Run window, then right you connect network (such as local connection), choose "attribute";
2, then choose Internet Protocol version 4 (TCP/IPV4), click "Properties";
3, continue in the Internet Protocol version 4 (TCP/IPV4) Properties window, check "Use the following DNS server address;"
4, then in "Preferred DNS server" input 184.108.40.206 (220.127.116.11 also try), determine;
5, after the setup, reconnect to the Internet, try to download.