Windows 7 new install hanging

I am trying to install version 1.2.3 on a Windows 7 Profressional laptop and the install hangs at what I believe is the end of the install. There are no errors on the screen or the event logs.

I am able to remove in Add/Remove but other attemps to install have failed. I have tried uninstalling and deleting temp files but it still does not complete the install. We have other Windows 7 machines where the installations went smooth.