Rightclick the Workflow in the List on the Left and “Start” it. Note that Starting a workflow is only useful if you have any Watchfolder Processor in the WF. If there is no Watchfolder, starting the Workflow does not actually do anything.
Place a file into the watched folder (e.g. “c:\temp” in above's example
Open the Status Monitor (Options-Status Monitor)
Latest after 30 seconds, you should see a new Job in your Status monitor
If this is the case, your Watchfolder works and you can go on connecting more Processors to the Monitor Folder Processor in your Workflow