In the Windows Store search for "Sketchup" and select this option from the list:
When you click "Get" it will ask if you want to sign in and you should select "No Thanks":
After a few moments the store page should show a box that confirms that the app is downloading:
Shortly thereafter it will finish installing and give you a button to "Launch":
When the app launches it will ask you to "Sign in with Microsoft":
It will bring up a box where you should log in with your River Dell email address, and once that finishes it will bring you to the Welcome screen that allows you to Start modeling:
