Richard181 said: I can have Quicken open full screen. If I choose to minimize the window it disappears entirely. The image of it is still available when hovering above the taskbar icon. I can choose Maximize and see Quicken full screen again, but I have no way to size a window for Quicken instead of choosing full screen.
Have you tried restarting your computer after this happens? You may additionally try uninstalling the Quicken software using the steps listed in this Support Article, then deleting Quicken from the Program Files (x86) folder. You may then reinstall the software after following those steps using the steps listed here.