You can download the latest version of the Windows Installer from Microsoft...
If you are receiving the "Failed. Try again?" message in Windows XP or Windows Vista, it is usually caused by an out of date Windows Installer. You can download the latest version of the Windows Installer from Microsoft here:
http://www.microsoft.com/en-us/download/details.aspx?id=8483
Once the service has been updated Garmin Express should now install properly without an installation error.
Jason