did you follow the Uninstall instructions? https://docs.splunk.com/Documentation/Splunk/7.0.0/Installation/UninstallSplunk If you had any indexes that didn't use the default path, those must be deleted also. This document includes a lot of good information in case you may have overlooked something in the uninstallation. In that same doc, you can navigate to the Install Splunk on Windows/Linux (depending on which OS you're using) page and follow those instructions. If you have followed these directions to a tee, have you tried adding your other forwarders and/or configuring the inputs that are already there? ... View more