Can't initiate CS6

bought and downloaded CS6.  Hit setup.exe and get a dialogue box  that says: "Installer failed to initialize.  Please download Adobe SupportAdiser to detect the problem."  There is a icon to download SupportAdvisor that is unresponsive.  HIgh end HP computer with Windows 7.  Downloaded Support Advisor independently and it says there is nothing wrong.  setup.exe still won't work.