If look at the title of this entry is quit strange, because SATA not know how to title, but it never occurred to me. I used to install windows xp on my computer, but the new windows do not over write the old window, so it's a problem when on my computer.
So, to eliminate one of the windows you can see the steps below.
First you need to go run and type mscconfig and press enter. You can see in the BOOT.INI and will looks 2 OS run to your computer. So now we can delete one of that with, press Run again and type c: / boot.ini
It will be display this type of file
[Boot loader]
timeout = 30
default = multi (0) disk (0) rdisk (0) partition (1) \ WINDOWS
[Operating systems]
multi (0) disk (0) rdisk (0) partition (1) \ WINDOWS = "Windows XP Professional" / fastdetect
multi (0) disk (0) rdisk (0) partition (2) \ WINDOWS = "Windows XP Professional" / fastdetect
See the second line above and select the correct one OS, and remove one of them. After that, save the file. and now you can restart.
goog luck guys.