Windows XP - "STOP 0x000000ED UNMOUNTABLE_BOOT_VOLUME" error message

If you get this error after a restart or upgrade, then do the following from recovery console after booting off the XP CD again:

You access the recovery console from your Windows XP CD by booting of it. Unfortunately some manufacturers CD's do not have this option, but if you download the Windows XP boot disks you will be able to use the Console.

Download XP boot disks from here (May require 6 blank floppy disks)

Once you log into the recovery console type the following command: 

CHKDSK /R

 

 

How to Reinstall Windows