0x8007F0CC

Written by José Gallardo on 01 July 2005.

This 0x8007F0CC error means: "STATUS KERNEL NONSTD". That is, the file needed to start the Operating System has not been recognized.

Right click on My Computer icon > Properties > Advanced, click on
Settings under "Startup and Recovery" and then click on Edit to edit the
"boot.ini" file.

Now we have to pay attention to [operating systems] section and
specifically to the line on which there is a reference to our XP. A line
such as:

multi(0)disk(0)rdisk(0)partition(3)\WINDOWS="Microsoft Windows XP Home
Edition " /noexecute=optin /fastdetect

If there is a boot option after /fastdetect, delete it, save the new
"boot.ini" and reboot. Go to Windows Update again.

IMPORTANT FOOTNOTE: it is strongly recommended you backup the "boot.ini"
file before doing any changes. If possible, save this backup on a floppy
disk.