reformatted my hard drive using my winxp cd,once winxp installation start,the process continue until ntldr error message stops the installation process.a message on screen says to press ctrl+alt+del to restart the computer, at which time the same thing happens when tht computer reboot.
go into your bios and change the boot order to cd instead of harddrive. OR You can change the boot order by pressing F12 (thats what mine is anyways) and select "boot to cd"