guys i gt a prob, the thing is that i gt my laptop from my uni and wen i bought it they entered my ID on some part of the pc and weneva i format my pc that ID is still there. i dont knw i guss its deep into the HD. the only way is gt 2 knw this ID is wen i turn on my Bluetooth. Now its a clever thing cuz if i try 2 do something 2 their netwrk they cn track me down. 😉 . well i dnt knw there may b many ways of tracking PC’s. Ip or MAC adreess(wateva tht is ) all i want 2 do is change it 2 sumthin else. n hw cn it b done quicly. Thanks in advance 🙂