Visual Studio Ultimate 2013 Preview With Blend Setup Failed

Hi experts,
I have bought Microsoft Visual Studio Ultimate 2013 and when I tried to install it I skipped some required components and I had this error. Now is not working at all even when I want to make a full install on my Windows 8. Can anyone help me please to install Visual Studio properly ? What I did wrong first time ?
Thanks !

Visual Studio Ultimate 2013 Preview
With Blend
Setup Failed !
Install Cannot continue because some required components failed.
Please correct the following problems and restart the setup to ensure full product functionality. Click here to see the most common issues and workarounds or here to review the log file.
Visual Studio Core Features – ENU
The digital signature of the object did not verify.
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