Those files can be safely deleted:
http://www3.telus.net/dandemar/spack.htm
Some more space can be retrieved:
http://www3.telus.net/dandemar/slowcom.htm
But your real problem ma be the need for another hard drive since these may
not free up much space.
--
Jupiter Jones [MVP]
http://www3.telus.net/dandemar/
"Publio" <> wrote in message
news:ADE20483-FEDF-48AC-ACA7-...
> My disk is geting low space, as I can see after installiing Windows XP
> SP2,
> there a lot of space used by $NtUninstallKBnnnnn$ files under c:\Wndows
> directory, even more there about 500 MB under c:\Windows\ServicePackFiles.
>
> The question is: Should I delete those files without any consecuence to
> Operatin System performance?
>
> --
> Publio