The "Mouse Moves but Can't Click" issue can seem unexpected, when using an external USB mouse along with a Touchpad on Windows 7, 8 or 10 based desktop or laptop. Issue in particulars: The user can move the mouse cursor on the display, but the click does not work and the only means to bypass the issue temporarily is to press Ctrl + Alt +Del & Esc. Generally, mouse (or keyboard) related issues are hardware problems. Thus, go and replace the mouse, however shutdown your Computer first (press the Power button continually, until the power indicator lights become away), before linking the new mouse.

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