Mouse hover window activation
Whenever I use a new PC, this is the very first feature I enable. Technically it’s part of the accessibility tools, but many users might find it useful no matter what their level of mobility. This setting allows you to activate a window simply by moving your mouse cursor over it, instead of requiring an extra click before interacting with the program. It’s a tiny change, but one that makes a huge difference, especially on a laptop trackpad.
To change this setting, go to Control Panel, then click the Ease of Access Center. Click “Make the mouse easier to use.” Under “Make it easier to manage windows,” select “Activate a window by hovering over it with the mouse.” Click Okay to enable the setting.