text: how to block internet access for a particular user? how is it possible to block internet access for a user in windows xp sp2 for a specific period of time. e.g, how to block internet browsing between 12 am to 6 am for a user. remember os is win xp sp2. try use mcafee internet security package. one of the component that u can use to limit user to use internet access is privacy service. after install, configure it and add the necessary user. remember. if u not login to privacy services, u cannot use internet. regarding to your purpose to block certain user to use internet. so dont leave your account for privacy serice login state, logout when u leave your computer