regedit, then search for "hot bar" "hotbar", and delete all the keys related.
Or under Internet Explorer superkey, enumerate all subkeys, find those that appear to have relation with "hot bar" "hotbar", and delete them.
Not sure whether this works or notregedit, then search for "hot bar" "hotbar", and delete all the keys related.
Or under Internet Explorer superkey, enumerate all subkeys, find those that appear to have relation with "hot bar" "hotbar", and delete them.