My best guess without further data is that your install is failing because you don't have admin rights. Try running the installer as Administrator, and let me know if you still have trouble.
- Scott
Whoops, didn't see your screenshot there. I'll check with the installer team and see if they can help decode this error.
A couple additional questions:
- Are you running as an Administrator? (Have you tried right-clicking and choosing 'Run as Admin…