Next, download the Install-WindowsImage.ps1 code directly from Microsoft or at MediaFire, then copy to drive C or any other folder on the hard drive:
Right-click on the file and select Properties , click Unblock button as shown below:
And combine the * .ISO file of Windows 8 Consumer Preview, download it here, then go back to PowerShell and type the command ' CD C: '
Next, type in the following command:
.Install-WindowsImage.ps1 –WIM D: SourcesInstall.wim –Apply –Index 1 –Destination I:
You should pay attention and replace the drive letter with the character in this test (behind the –WIM parameter). Then press Enter:
The drive E here is the VHD partition created in the previous step
When completed, the system will display the message as shown below:
Then, open the Command Prompt and type bcdboot.exe I: Windows (assuming that I is a Windows 8 drive):
And when the system boots the next time, Windows will display the new operating system selection screen as shown below:
The last thing to do here is to change the file usage and sharing mode between the two operating systems. To boot directly into the Windows 8 installation process, you go to the account directory under the path:
C: Users [Account name]
Right-click the Contacts folder and select Properties from Context Menu , select the Location tab and click the Move button:
Next, move to the Contacts folder on the partition containing Windows 7:
Click OK, and the system will automatically transfer data between the two locations. You just need to do this again with the following folders: Desktop, Downloads, Favorites, Links, My Documents, My Music, My Pictures and My Videos . Very simple and easy, wish you success!