Do you mean it gets to the Windows desktop and then freezes? If not, what screen is this you're talking about? The Welcome (logon) screen?
Or do you mean the screen where it shows details of your hardware including your hard drives before Windows even starts booting?
The moment the laptop starts booting off the hard drive, press F8 and try "Last Good Configuration" and see if that does anything. You have to be very quick about it and do it at the right moment, otherwise XP will just try booting as normal.
Also, you can try to get into "Safe Mode" from that screen; I'm curious if it still freezes in this mode if the "Last Good Configuration" didn't help.
If I'm telling you anything you already know or thought of, forgive me.
boot into safe mode, remove all drivers for sound video network chipset, reboot, then install them one at a time rebooting after each, start with chipset, if its not the drivers doing it it could be an update at fault
ok thanks treid all that unplugged all drives except main and it booted kept adding them and when i plugged in floppy drive it froze. prob solved but got blue screen once think main drive maybe on its way out