Well many updates require a restart for the update to be fully installed. The only solution would be to not install updates.

Most probably you have already uninstalled it, but your browser is redirecting to the Errorsmart website. In addition updates, and anti-virus updates are probably broken. The easy solution is download Combofix, let it do its thing and remove the rootkit that was installed along with the useless errorsmart thing.

Windows updates is when your computer automaticly updates without you doing it. These updates are free and are from Microsoft.com directly.

Have you maybe tried restarting your computer or installing some updates? If this doesn't work, Google it. You may find some useful information!