The Windmill is a really easy game that builds up regardless of suit and color by rank (so I just used one suit for the whole game to avoid confusion). The only thing to remember is that the center foundation holds 4 families (52 cards) and builds A .. K (ascending) by wrapping around several times. The four corner foundations hold 13 cards each.

Hint: To be successful you should move all cards of a partial corner foundation to the center to make room for new Kings. In the screenshot move 10, J, Q, K to the center until the corner foundation is empty and put the A into the center, too.

There is an article about Windmill in the english Wikipedia.

Good Luck!