If i uninstall steam?

ok last time i JUST uninstalled the steam client it made my whole computer wonky i had to delete everything to it manually ect , but if that wernt to happen and i uninstalled just the cleint, when i reinstalled would it show on steam my games are installed and cold i play them im damn tired of having to replay the same games over again to beat them ect like borderlands because steam alwsy knows how to mess up