How does Storyline Resume?

I appreciate the value of using a progress variable.  But in my case it will be too much work for the way my client is using my Storyline Modules.  My client has a training room with several PCs.  The modules are published for CD and installed in a folder on the PC.  A shortcut to the "exe" file is installed on the desktop to allow the trainees to access the training.  Each trainee uses a separate computer until completion of the training module so the resume feature works perfectly.  However, when another trainee wants to take the course on one of the computers after someone has previous completed the course, the resume feature still displays the resume prompt.

If the administrator cleared the cookies in the browser after each trainee completed a course, that should reset the resume feature.  Would this work?

-Vic