Opening iTunes64Setup.exe on my Windows 7 64-bit system does nothing when running as normal or administrator user. Nothing means no error messages - just nothing.

Question

I'm trying to install iTunes64Setup.exe (10.7.0.21) version on my Windows 7 system and nothing happens with I try to run the exe. If I run as admin, I get the UAC dialog andclick ok - and nothing happens after that. When I downloaded the exe, I went to the Properties for the setup file and clicked the Unblock button so to get around some of the other issues that people reported - no luck running. I tried running Microsoft FixIt for installation issues - http://support.microsoft.com/mats/Program_Install_and_Uninstall/ and no luck after that. In all cases, I try to open it - the mouse cursor spins for less than a second - and nothing happens. I don't see any processes running in Task Manager. I've also tried manually starting the Windows Modular Installer and then running setup. I've tried downloading the exe from another computer to see if it was a bad download and both files do the same thing. The size of the downloaded file is 76.7 MB (80,521,624 bytes). I was able to run the same exe from my other computer running Windows 7 64-bit OS.
Help!

Answer 1

ok - I setup with a clean boot using msconfig.exe as suggested and disabled all the Microsoft Services and unchecked the Load Startup items, accepted the changes and rebooted. I then tried running the itunes64setup.exe again, and this time - there was a very slight change in behavior - a thin dialog - what looked like a progress indicated displayed on my main display for about .5 sec and then went away - no text in the box. I ran setup again - this time from a USB stick - the little progress indicator stayed up on the screen for about 1.5 sec and I could see a grren bar on the left grow about 1/10th into the progress bar until in disapperared and nothing else happened. What's next?
Thanks,
Bill