When you open Device Manager, right click the problematic device driver, in its Properties, under the Events tab, you can see Device not migrated showing here. How to Fix Windows 10 Device Not Migrated? Device Not Migrated Overview: Why My Device Is Not Migrated Windows 10? For some users, you may find after upgrading to Windows 10, you have the Device not migrated error on Hard disk drives, Realtek High Definition audio, USB device, etc.