can't open firewall settings

[nell]

Was given a dell laptop 8200 everything ok but.... when i try to open the fiewall in control panels i get " due to unidentified problem, Windows cannot display windows firewall settings" this unit is registered with the persons name who gave it to me , it won't allow me to change the name in windows system folder. Could this be the problem? if so, how can it be changed?
thanks

 

[Rik]

What windows version has it got on it???

 

[nell]

windows xp!

 

[Rik]

Home or Pro????

 

[nell]

xp home----- sorry

 

[nell]

still need help

is there a way to change reg. name if thats the problem