I am getting this same error. I have tried doing this by running as Administrator, using both an .ISO file from our MSDN installer, also burning it to a DVD and trying that. I tried REDOWNLOADING the installer, one of our GP people here even got the trial version for me to try to install from and it still gave the same error. I have also tried copying it to the local desktop and re-running the setup - but for me this didn't work.
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