Data migration
Post-migration: After data migration, results are subjected to data verification to determine whether data was accurately translated, is complete, and supports processes in the new system. During verification, there may be a need for a parallel run of both systems to identify areas of disparity and forestall erroneous data loss. Additional documentation and reporting of the migration project is conducted, and once the migration is validated complete, legacy systems may also be decommissioned. Migration close-out meetings will officially end the migration process.
User State Migration Tool
The User State Migration Tool (USMT) is a command line utility program developed by Microsoft that allows users comfortable with scripting languages to transfer files and settings between Windows PCs. This task is also performed by Windows Easy Transfer, which was designed for general users but then discontinued with the release of Windows 10, where they instead partnered with Laplink. Starting with Windows 8, many settings and data are now being synchronized in cloud services via a Microsoft Account and OneDrive. USMT allows a high-volume, automated deployment of files and settings, and is also useful in migrating user settings and files during OS upgrades. Because USMT has high complexity and a command line interface, there have been several attempts to provide access to its useful functionality by creating GUI wrappers for it. 32-bit to 64-bit migrations are supported, but 64-bit to 32-bit are not.