~25 years later I'm still learning new things about Windows.
→ 3 weeks ago synced to micro.blog
Have you accidentally moved a window so far off screen where you can't click on the title bar and move it back?
Right-click on the taskbar, click "Cascade windows".
Shift-right-click on the window in the taskbar, click "Move", then with the keyboard press the arrow keys until the window comes into the screen!