Can anyone please help me with stoping my sister acsesing something on one of...

...our pc's!!!!!??? My sisters want to go on imvu, there only 12 and we've had ALOT of trubble from it befor. My mum and dad don't understand about computers very much and dont know what to do. We've tryed to put it on ristricted sites but they take it off. I dont know the password for the pc and they wont tell me. Is there anything i can do??? pppllleeeaassse help me! Is there anyway i can block the pc from working untill they sort it? Please help any one. The only things i cant to is put a net nanny on or somethijng like that because i cant get on it!

Research how to change the host file. Save or rename the old one just in case there is a problem.

unplug all the wires and hide them - wont be able to use it then!

Yup. You should open your PC and take all of your RAM's out...then the computer will be hanged unless you put your RAM back.

2. If you have a user in the same computer...and you want your sis's password change folloow the steps

Start>Run>cmd>net user <user name>.>type the password.......................you are done!

cmd means you have to type cmd in the dialog box. <user name> means you have to type your sis's user name on the computer..

3. You should try to convince her again

I hope this will help
Thanks :-)
Best of Luck!

lol tis easy...just unplug pc and take out the battery so you will have no password ,turn on pc then back off and put battery back in and set your own password...................simple hehehe