What do you mean the sound card device has not migrated?

Custom sound card properties were not migrated to the new sound card.

Just right-click the problematic device driver when opening the device manager, and under the event tab in its properties, you can see the devices that have not been migrated here, so you can migrate them.

When the device cannot be migrated, an error message will pop up in 64Window 10, indicating that some devices are not operating normally, such as external hard disks. Just like the device is unknown and unconfigured, this 64Window 10 device migration error is quite frustrating, and the hardware often needs to be re-matched.