If you are having trouble installing the platform one thing you can do is watch the log files during the install and see when the issues are occurring. Any unhandled exceptions should end up in the logs, sometimes these can provide some very helpful information about why the install is failing.
The logs are located in %appdata%\Apprenda\Logs
In PowerShell you could use the following command to follow the file as it is being written to similar to the Unix tail -f command:
Get-Content $env:AppData\Apprenda\Logs\installWizard.log -wait