Earlier this year Microsoft released an update to USMT 4.0, adding support for Office 2010 and a few other minor updates:
- The XML rules included in the default Migapp.xml file are updated to include new rules that support migrating Office 2010 application settings.
- Changes that resolve an issue that creates many temporary files, that does not correctly remove the temporary files in a hard-link migration, and that causes poor LoadState performance.
- An issue that prevents migration in certain time zones is corrected.
You can download the update from Here.