Read the host notes!
Just for fun I downloaded them, they contain gems like this on page 5:
"What do I do at the party?
Introduce • We’ll be making the computer uniquely our own by changing the desktop background.
• Use Windows Search from the Start menu for any of the following: background, desktop, wallpaper, appearance or slideshow. Click on change desktop background.
• Choose photo(s) for desktop slideshow (pictures library > scroll to the folder > clear all > select photos).
• Change the picture position to fit. • Have picture change every 10 seconds. • Save changes.
TIP: Other customization features can be found here, too.
Guests’ hands-on exercise • Guests create a new desktop using the photos in “Party” folder in Windows Live Photo Gallery. • Who goes first?"
Are they joking? That certainly isn't my idea of a 'party' activity.
They cannot be serious with all this rubbish, I think abigsmurf got it right above.