Under Linux, I use Xmodmap to change the mapping of certain useless keys on my keyboard, such as the Microsoft keys:
! lines starting with an exclamation are comments ! left microsoft key (between left CTRL and Alt keys) keycode 133 = guillemotleft guillemotright ! right microsoft key (U2022 = "big dot") keycode 135 = degree U2022 ! right microsoft menu key (big checkmark, star) keycode 134 = U2714 U2605
The second mapping is for "shift + key". You can use "xev" to discover keycodes.