When opening the app on my Windows computer, I'm asked if I want to install, repair, or change the app. Help!

This message indicates that you're clicking on the installer, instead of the app. You need to locate the application and open it:

1. Locate the application by going to the Start menu on the bottom left and typing 'Playground' into the search field.

2. Double click on the file that has an icon with a white note on a blue background to launch the application.