some times after uninstalling a application and trying to install the same application it will not install .It is due some configuration files regarding that application are not getting uninstalled or removed.
so to tremove these configuration files download mscicuu2.exe file windows installer cleanup
http://download.microsoft.com/download/e/9/d/e9d80355-7ab4-45b8-80e8-983a48d5e4bd/msicuu2.exe
run the clean up
