A while back I tried to install Windows XP Black Edition on my computer. Windows xp pro was already installed and I was not able to install xp black edition because some important files were missing in black edition Since then I changed my mind and continued using Windows xp pro. Now, because I started the install of XP black I have this error message whenever the computer starts. It goes to the message "Please select the operating system to start" and if your not quick enough it will go through the whole XP setup thing again. It is quite annoying and would love to get rid of this thing that obviously contains some sort of setup data that stays on my computer. can anyone help me to REMOVE the setup data so I can just boot right to Windows xp pro like I use to? Thank you very much!

You'll have to edit your boot.ini file. Go to System Properties, select the Advanced tab, Startup and Recovery settings, and click Edit. Remove the entire line of the OS you don't want to use. Make sure you choose the right one!

here is boot.ini text, kindly tell me exact line

[Boot Loader]
Timeout=5
Default=C:\$WIN_NT$.~BT\BOOTSECT.DAT
[Operating Systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect
C:\$WIN_NT$.~BT\BOOTSECT.DAT="Microsoft Windows XP Professional Setup"

remove the last line then save. Once you reboot you will no longer get that message
C:\$WIN_NT$.~BT\BOOTSECT.DAT="Microsoft Windows XP Professional Setup"

WAIT!! You gotta edit the default line also. Go Start, Run, paste in:
control sysdm.cpl,,3
...then press Startup n Recovery Settings, Edit...

[Boot Loader]
Timeout=5
Default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[Operating Systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect

hey thanks guys speacially @gerbil, now every thing is fine thanks again

You're welcome...

I didnot understand what changes have
you made in the default line in the boot.ini file?

Please mark as solved and add to the reputation of the people concerned, thank you.

By removing a line in the Boot.ini, it simply means that you give instructions witch OS to boot up from if you have more than one. By deleting a line you're saying that you dont want to boot from that OS, witch is what they did in this tread