Removing the first WinXP is a simple two-step process. Simple to do,
that is; but it takes a lot of words to explain. :>{
1. To remove the "bad" copy of WinXP, boot into the "good" copy and delete
the bad copy's "boot folder".
2. To remove the "bad" copy choice from the opening menu, delete that line
from [operating systems] in C:\boot.ini.
The only hard part about step 1 is identifying the proper boot folder. By
default, WinXP Setup always names the boot folder \Windows; if you have two
WinXP installations, they may be C:\Windows and X:\Windows. (If you
insisted on putting both WinXP installations into a single volume, the
second one may be something like C:\Windows(1). If you upgraded to WinXP
from WinNT4 or Win2K, the boot folder might have inherited the name \WinNT.)
If you try to delete the one that is currently in use, WinXP will refuse to
kill itself.
Step 2 can be done in any of several ways. Perhaps the simplest is to run
msconfig, click its BOOT.INI tab and then Check All Boot Paths. (Do this
AFTER deleting the "bad" boot folder in Step 1.) Or edit C:\boot.ini in
Notepad, after removing its System, Hidden and Read-only attributes. Or
click the Edit button in System Properties | Advanced | Startup and Recovery
Settings.