Windows 7 : Installer Issues

As posted here, I have been playing around with the Beta version of Windows 7. Everything was working great, until I started getting  a mysterious error “Installer stopped working”, when I tried to install any new software. A Google search, led me to this site ( . Here’s the solution to the issue. 

start regedit
navigate to HKLM\Software\Microsoft\SQMClient\Windows\DisabledSessions
rename MachineThrottling to _MachineThrottling