Windows 7 - Boot options show Ubuntu from XP install

Long before I bought Windows 7 I was running XP on a dual boot with Ubuntu, I then removed Ubuntu from computer but was still left with the boot option which I successfully removed. I then installed Win 7 as a dual boot with XP and once I was happy with 7 decided to remove XP just leaving 7. As soon as I did so for some reason the Ubuntu option returned to my boot menu. I have tried lots to remove this option but to no avail. The option does not appear on easybcd but seems to be a remnant of XP left in the now useless boot.ini file. I am able to access the boot.ini file using "run" but when I try to edit the Ubuntu option out access is denied. I know I have to change permissions to edit this file but have no idea of it's location and a search returns no results. I hope I'm making sense to someone and any help would be much appreciated.

Try a program to unninstall the last software,if this doesn't work try again a clean install,and erase all the HDD.

I have done a clean install to remove XP and Ubuntu option is still there.

I think is something stocked in the registry.

Any idea how I find it?

Ubuntu is still working on your PC?

That's what's strange Ubuntu was removed over a year ago from system and boot menu and as I said I performed a clean install to remove XP and that's when Ubuntu option reappeared.

In what partition have you installed the Ubunstu OS?
Try to format that partition.

There is no partition.