1. Download Windows 8.1 DVD iso file then burn it.
2. Install Windows 8.1 to other units or Virtual Machine.
3. Un-plug your SATA HDD after install was completed.
4. Use external SATA USB cable to connect to WDS Server.
5. Download the Assessment and Deployment Kit (ADK) from MSDN subscribers download.
6. Install ADK by running adksetup.exe, and make sure that Windows Preinstallation Environment is selected (selected by default).
7. Open "Deployment and Image Tools Environment" as administrator.
8. Type imagex /compress maximum /capture X:\ C:\install.wim "Windows 8.1 Pro"
9. Wait about 5~10 minutes, and you will get it.
