Win 10 edition Beta - Opens as trial after purchase

Purchased Win 10 ed beta several weeks ago. Keeps opening as trial. Usually can make it go away if I click through to purchase, close the purchase screen, then close and restart the game. This is getting really tedious. And now, the "time" of the "free trial" has run out and the trick isn't working anymore. Have uninstalled and reinstalled. Still can't play. Please help.