Much of my work is done online on a handful of websites and non work-related web browsing can be a distraction at times so I want to block out all but the few that I need for work. A quick search online found a few ways, such as clicking on Internet Options and LAN settings and then something about a proxy server, but I need to make sure this applies ONLY to my own PC and not to other people at work who use the same server.Any advice?