New in SOLIDWORKS Simulation 2018 is the ability to dismiss pop-up messages. For example every time you re-mesh a model after the study had already been solved, you get the pop-up warning that the previous results would be deleted. You can now select ‘Do not show again’ so it no longer keeps coming up on future re-mesh situations. Of course you will need to remember that it will delete any previous results when re-meshing.
If you have incorrectly set a SOLIDWORKS Simulation Dismiss Message, it can be re-enabled through the Simulation system options (Simulation > Options > System Options tab).