Easy Mouse Lock is undoubtedly an original utility to apply to the mouse, because it allows defining specific coordinates of the screen and from that moment the mouse is restricted to that area only and exclusively, never leaving the invisible box that has been marked in those coordinates.
To define these coordinates, you simply have to indicate the height, the low, the width and the length, for example, 100, 100, 200, 350. With this you can make the mouse move only in the rectangle of the screen that goes from 100x100 pixels to 300x450 pixels, being impossible to ever get out of there.
To remove this invisible rectangle, just press the Esc key.
You can free download Easy Mouse Lock 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.