As of this writing, the T, Y, Tab, Caps Lock, number 5, left Shift, left Win, [, ], and Backspace keys on my laptop's keyboard do not work due to water leakage. Before buying a new external USB or wireless keyboard, I thought of and really tried some keyboard keys remapping tools for the first time. After simply testing KeybMap and KeyTweak, I did prefer the former (although the latter is more powerful), and could not wait to recommend it to everyone.