How Do I ... Why do I ...

-Get past a windows 2000 passwd if i have physical ascess and permission too ??
-Hack my friends computer over the internet if we are both connected ??
-Use the edit command in windows, it always ruins my programs if i edit, oh, lets say MSpaint?
-Should i stwitch from windows to unix or linux
-MY friends use programs and trojans, should i stay away from these applications ??
-Teach my friends who think they are elite using their gadgets, that they are not ??
-Gain knowledge on my own, what should i try to edit or accomplish ??
-Why 'grey hat hackers' are so scarce ??

Thanks for any replys to my qeustions,im n00bish and need help

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