the logon screen appears
You can improve your booting time of windows xp just by using startup manager.
What methods are available for booting into the Windows Setup program on a stand alone PC
Try booting in safe mode by holding F8 before the windows booting screen appears.
Desktop icons.
Boot.ini,boot.exe,ntldr
5 booting files They are:- 1)NTLDR 2)NTDETECT.COM 3)BOOT.INI 4)BOOTSECT.DOS 5)NTBOOTDD.SYS
Dual booting means two operating system installed on PC. for example you install windows xp and windows vista at the same time. or windows xp and Linux on same PC. Dual booting is only a term you can install more than one operating system on one PC. for example you can install 10 windows xp copies on your 10 drives.
The following booting files are required to start Windows XP: NTLDR, Boot.ini, and Ntdetect.com. The following files are optional when starting Windows XP: Ntbootdd.sys and Bootsect.dos. The following files are required to start Windows 7/Vista: Bootmgr (Windows Boot Manager) and BCD (Boot Configuration Data).
Ntbtlog.txt
ntbootlog.txt
Ntbtlog.txt
Your question is rather cryptic. Do you mean Microsoft Windows, leading to dual-booting Windows and Linux? Please expand your question.