0xC1900101-0x30017 Error When Attempting to Upgrade From 1909 to 21H2

[Dom727]

Hello, I am having a great deal of trouble getting Windows to upgrade to 21H2 successfully on about 50 machines of the same model (Latitude 5420). It will get through the setup process fine, but after the first reboot when the machine is applying the changes, it will hit about 30% and then start to roll everything back. SetupDiag returned error code 0xC1900101-0x30017. I have tried removing all security software, installed every driver update that is available for the system, and continue to have the issue. Can I please get some assistance in interpreting some of these log files? I am at a los

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