well if the windows are still open and not on a separate monitor and not showing on the task bar, try these windows tips
Tile the windows across the screen
Click the taskbar’s clock with the right mouse button and click Show Windows Stacked, or
Show Windows Side by Side.
Cascade the windows across the screen
Click the taskbar’s clock with the right mouse button and then click Cascade Windows.
Shrink all open windows
Click the Show Desktop icon at the taskbar’s far right edge.