Originally Posted by Wolfeymole
A longer winded, but definate fix way to do it, is to do a repair install. It reinstalls WinXP without removing the old installation.
Boot from the XP CD and go through the install setup program, go past the recovery console options and the setup "should" find your windows installation. It will then give you the option to repair or reinstall Windows, choose to REPAIR.
It will then go through a full repair install which will restore all major files including your NTLDR. It does take about as long as a fresh install but well worth the hassle if your installation is screwed.
Just make sure you choose to REPAIR and not reinstall, otherwise you will end up with two installs of Windows on the same drive, and things get messy!
Hope this helps
Hmmm nice idea

, but things could get messy and take even longer to fix, like Madmonkey has said if he's got a Floppy disc drive it should be pretty simple

.