回复：我一直都没有安装他们的update,可不知怎的它们还是知道了

When computer downloads updates, there are two options, one is automatic istallation (which is recommended by microsoft). When you chose this option, the updates will be installed without your attention. The other option allows you to exam what updates to be installed. You can select which one to be installed. This is the chance you can choose not to install the validation patch.