How to shut off someone's computer from another computer?

Can I use the windowsxp disc I got with my computer on another computer?

Someone plugged their iPod into my computer and then plugged it back into their computer and now they have my whole iTunes li...

Why do you stack a computer?

On windows live/msn do you need a microphone to call another computer? Will they hear me talk if I dont have a microphone?

Yeah. So can you attach someone else's ipod to charge it to your computer without changing the songs that are on it?

What do I have to do to change the parental settings on my computer so I can set up another email account? How do I change it?

Ok At my V School Were Connected to the network.. but I want to get my laptop and connect to my friends computer so I can pul...

How can I check my outlook express mail from another computer?

Is there a way to check when the last time my computer was turned on/used? Is there a log of some sort? I think a coworker ...

Its been about a year now. Someone or something keeps trying to get past my computers firewall. It hasn't succeeded yet, but ...