Windows Live ID Sign-in Assistant Setup Wizard ended prematurely because of an error. Your system has not been modified. To install this program at a later time, run Setup Wizard again.
If you look at the event logs there is an informational event with event ID# 1033 and the source of MsiInstaller. This error says:
Windows Installer installed the product. Product Name: Windows Live ID Sign-in Assistant. Product Version: 6.500.3165.0. Product Language: 1033. Installation success or error status: 1603.