The Recovery from USB will be successful after modifying the diskpart.txt on the USB recovery drive when the Windows RE tools partition is larger than 450MB. For instance, modify diskpart.txt in the USB recovery key so that Windows RE tools partition is larger than 450MB.)
After a Windows 10 Redstone 3 upgrade, if you have system trouble you can use the USB Recovery key to successfully restore back to Windows 10 Redstone 2. You could create a USB Recovery drive prior to the Microsoft Windows 10 Redstone 3 OS upgrade.The USB Recovery drive created after the upgrade could fail due to the increased size of winre.wim file not fitting in the Recovery Partition. There is a chance of a Dell System Failure during a Recovery from the USB drive process. After a Microsoft upgrade from Windows 10 Redstone 2 to Redstone 3, if a USB Recovery drive is created.