When you install Splunk on a Windows machine, it runs as a service. The GUI for Splunk can only be accessed from a browser. http://localhost:8000 should be the right address for Splunk if you used all the default options. If you want to check on Splunk: First, is Spunk running as a service? It should appear with all the other services running on your Windows machine. Second, is Splunk using the default ports? Look at C:\Program Files\Splunk\etc\system\local\web.conf If there is anything in this file that looks like: [settings] startwebserver = 0 # means that there is no web server running (default is 1 - run the web server) httpport = 80 # means that the web server is running on port 80 (default is 8000) If the startwebserver setting doesn't appear in the file, that's fine. The httpport setting is required; without it, Splunk will not start the web server. Also, try a different web browser, as @lukejadamec suggested. ... View more