- Right-click on the Windows taskbar and select Cascade windows from the pop-up menu.
- Hold down the Shift key, then right-click on the appropriate application icon in the Windows taskbar.
- On the resulting pop-up, select the Move option.
- Begin pressing the arrow keys on your keyboard to move the invisible window from off-screen to on-screen. Typically, you will use the left arrow to move the window from right to left.
References
https://support.ti.davidson.edu/hc/en-us/articles/115016089728-Move-an-Application-Window-From-Off-screen-Back-to-Your-Main-Desktop-Windows
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