The mouse can not be installed on all computers. I have tested on 8 different machines (2xXP, Windows 7 2x, 4x Windows 8.1) Result exactly 50/50 4x she was infected normal and install. 4 other computers they did not know and in the system a fault code will be displayed. New Driver benefits nix. Errors were independently on all operating systems. If it works, then it also slides relatively poor. I can not recommend it (would mean at any time give away).