Continual failures upgrading Windows 10 Pro 1909 (Build 18363.1379) to 20H2

  • Thread starter Thread starter TTrewitt
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TTrewitt

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These messages were from the default automated / scheduled update process:

Feature Update:

Feature update to Windows 10, version 20H2​

Failed to install on 4/12/2021 - 0xc1900101​


Quality Updates:

2021-02 Update for Windows Version 1909 forx64-based Systems (KB5001028)​

Successfully installed on 3/13/2021​


2021-02 Cumulative Update for Windows Version 1909 forx64-based Systems (KB4601315)​

Successfully installed on 3/10/2021​


After attempting the USB/ISO update path (Method 1 from Install Windows 10 version 20H2 manually - Your Windows Guide), the process hung at "90% complete" for over 3 hours, forcing a hard reboot. This resulted in the following message at restart::


We couldn't install Windows 10​

We've reset your PC back to the way it was before you started installing Windows 10​


0xc1900101 - 0x400D​

The installation failed in the SECOND_BOOT phase with an error during MIGRATE_DATA operation​



Processor: Intel Core i5, 661 @ 3.33GHz

RAM: 4.0 GB (3.74 GB usable)

54 GB free (of 111 GB) on OS/boot drive


In Safe mode, the OS build appears as 18362.19h1_release.190318-1202


After failure of the USB/ISO attempt, I forgot to disable the WSUS service, so the default update process started one more, during which I (again) had to hard-boot the PC after watching it hang at "60%" for over 2 hours.


The folder named C:\Windows\Panther exists, but there is NO folder named C:\Windows\Rollback


The folder C:\Windows\Panther\NewOS exists, and contains ONLY 2 folders, named Panther and RollBack


The SerupAcct.* logs at the root of Panther are from my initial Windows 10 installation a year ago, and not relevant to this update issue.


ChkDsk C: /F completed without any errors


Diagnostic files are located here: Wondows 10 Update Failure Logs.zip

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