well I am into some serious trouble and asking some tech help , but u have to go-through my story first and then give me some remedies This is a very common problem and I am sure some of us in this forum already faced/facing/will face the same problem . I am away from my home city for job and I do software coding in a MNC . I live with 4-5 IT/BPO profs in an apartment and here only I have my PC which now has become the center of attraction to all my friends and this is the main reason where the trouble starts . Actually my salary is somewhat higher so I bought TV tunar...pay the cable and same about internet also .well I pay this is not the problem . I mainly use the computer for a website-project I am doing ( NOT my office project ) , I prepare for some online exams . what happend is that my friends here used to see porns here at my PC all the time ( through net and through CDs also ) and it happened that they act like the owner of the computer . there are many other issues .even for them I dont allow to get access to my pc . I have taken net only for my purpose but things start with “ I just want to ck my mail one time “ and these requests grew . well just cking mails may not be a problem but they download email attachments , porns which cost a lot of bandwidth ( I have a limit of 512 MB per month ) …….and obviously some virus . well it is not that I never see a porn but for them internet is just a tool for porns and nothing else and they see it for all the time . Now remedy for this problem also lies in my hand 1. the easiest is > I can change my home and live seperately . Which I will do if I don’t find any intelligent solutions from you . 2. another solution is I can kick-out internet / cable tv because I can connect through the office also > But I do some work through the net . and I am not kicking the cable line now because of the incoming FIFA world cup . with this another thing I can do is to change my OS other than WINDOWS . well those BPO guys may not handle Linux very efficiently . 3. I can change appearance of windows with some annoying DOCKs / shell replacements like that .. I think now you have got enough idea what my problem is …………………………give me some intelligent solutions .