You can cancel the startup of SolidWorks if you launch it accidentally.
Messages on the splash screen inform you of the startup progress.
SolidWorks Fast Start
To launch more quickly, SolidWorks begins loading components in the background when you start your computer.
To turn off SolidWorks Fast Start, from Windows click . Right-click SolidWorks Fast Start and click Delete.
See SolidWorks Help:SolidWorks Fast Start.