Using Microsoft User State Migration Tool (USMT) to migrate profiles between domains

Run the ScanState tool normally to scan the users and folders on the machine

If only the domain name changes, but the user names stay the same:

loadstate /i:migapp.xml /i:miguser.xml \\fileserver\migration\mystore /progress:prog.log /l:load.log /md:OldDomain:NewDomain

If both domain and user names change:

loadstate /i:migapp.xml /i:miguser.xml \\fileserver\migration\mystore /progress:prog.log /l:load.log /mu:OldDomain\OldUsername:NewDomain\NewUsername

NOTES:

The accounts must already have been created when Scanstate is run or Loadstate will fail with error 71.

For some unknown reason, if Loadstate is run with the /MU switch and the /C switch to continue on error, The command will complete with a Return Code 0 (normal), but the New User profile will not be updated.