XP SP2 Error 8007F0CC

I have XP Home edition, and I am trying to install XP SP2. After I accept the
agreement then it says updating 1of2 and then it stops and says it was unable
to install with this error number 8007F0CC

0x8007f0cc - STATUS_KERNEL_NONSTD
The core system file (kernel) used to start this computer is not a Microsoft Windows
file. The Service Pack will not be installed.
http://support.microsoft.com/?kbid=327101
Error message: Windows has detected that one or more protected core system files
(kernel) on your computer have been modified


"Mike" <> wrote in message
news:58E1FE10-FEBD-470B-A191-...
>I have XP Home edition, and I am trying to install XP SP2. After I accept the
> agreement then it says updating 1of2 and then it stops and says it was unable
> to install with this error number 8007F0CC