How to eliminate dual boot message on xp

[etesting]

installed new os proffesional xp
boots and stops at home rdition or profeesional choice screen

 

[WyomingKnott]

Simplest case: Edit boot.ini in your OLD installation and delete the line for your old installation.

Did you install on a new drive or a different partition on your old drive? Or did you install over the old OS, wiping it out? There are cleaner solutions in some of these cases.