is the Windows App supported on Splunk installed on Linux ? When I go for example to section Windows -> Event Log Collections I get a message "In handler 'win-event-log-collections': Admin handler 'win-event-log-collections' not found.". There is no link to create a new "source".
The reports and queries and searches my be run on a Linux search head or Linux indexer, and will display results correctly, provided the data is in the queried index.
The Windows-specific data inputs (WinEventLog, WMI, Registry) will not run on Linux. The inputs must be run on a Windows machine to collect the data. This data may be forwarded to an indexer that runs on any platform (and reported on from any platform.)
In your case, it appears you are trying to configure inputs on a Linux machine, so this won't work.