Make sure the web address http://localhost is correct

I left my local setup fine last working day but today when I am trying to launch the app from IIS, it is not working,. any idea?

I have reset the IIS, i can see data is collecting in the MYSQL but still I am not able to launch the application.

I am able to open http://localhost/ but not able to open http://localhost/Piwik%20Test

nevermind, it was SSL issue,