How to remove the Vista “Windows Boot Manager” from windows XP
Before attempting any of the following make a restore point
1. Open up my computer with all hidden files and file extensions visible.
2. Cut and paste the following items into a separate folder or partition:
Boot (hidden folder)
Bootmgr
Bootsect.bak
Boot.ini
Boot.bak
3. Rename Bootsect.bak to bootsect.dos and copy back to the My Computer
folder.
4. Copy the boot.ini file back to the My Computer folder and then open with
notepad.
5. Remove all the following lines from the reference and save ensuring it is
not set as read only.
;
; Warning: Boot.ini is used on Windows XP and earlier operating systems.
; Warning: Use BCDEDIT.exe to modify Windows Vista boot options.
;
6. Restart the system and you should be able to go straight into Windows XP
without having to go through “Windows Boot Manager”.
7. After windows has finished loading you should be able to format the
partition that Vista was installed to (ensure that the backup copies you made
first are not on this partition).
8. If successful then it would be advisable to set another restore point.