Why shouldn't I disable legacy USB on a laptop?

By default the BIOS enables this feature. What are the advantages of doing so?


Solution 1:

This link is admittedly very old, but i can not imagine that the function in the BIOS has changed much. Essentially what the Legacy USB Support in the BIOS does is emulate USB Keyboards and Mice as PS/2 compatible devices, enabling operating systems which are not USB aware to accept them as input devices.