windows logging off after clone

After cloning a disk partition, windows xp will remember the disk letter if it saw it before and will reuse that letter when reloading.

The letter needs to be purged from the registry.

see
http://www.goodells.net/multiboot/partsigs.htm for more information.

running regedit (remote) in bartpe allows to edit the registry on the machine to remove the known drive letters.

In case the site goes away the registry key is

[HKEY_LOCAL_MACHINE\System\MountedDevices]