Came back to my win7 machine to a dialog saying that Windows 10 will automatically update for me in 3.5 hours. There was no actual cancel button, only try again

Came back to my win7 machine to a dialog saying that Windows 10 will automatically update for me in 3.5 hours. There was no actual cancel button, only try again later. To be honest, when I first saw the win10 update dialog I thought it was malware. The tray icon and the dialogs are stored after windows 8 so they don't look right.