Windows 10: 0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during...

Hello,


I've tried several times to remotely upgrade my office computer from Windows 10 Pro 64-bit r.1809 to the current 2004 release and previously to r. 1903 without success.


I've tried it through Windows update and, after restart, the PC keeps on 1809 release.


I've tried it via Windows 10 update assistant https://www.microsoft.com/software-download/windows10 with the same result.


I've tried to update from a recent Windows 10 ISO file downloaded on the PC, but the process is not able to upgrade Windows, just to re-install it loosing all my previous setup.


I've even tried to follow steps collected from Internet repairingWindows inconsistencies, stopping Windows update related services, delete software distribution folder, re-launch update process as administrator with no luck at all.


Due to the current pandemic situation, that forces me to work from home connected to my office computer, I'm not able to follow the last solution, i.e., reinstall Windows 10 from scratch through a recent ISO downloaded onto an USB stick, cause it would imply losing network connectivity.


Is there a way to solve this problem?


I'm attaching the Panther and Rollback log files from my last attempt through Windows 10 update assistant.


Thanks in advance!


Panther logs: https://ucomplutense-my.sharepoint.com/:u:/g/personal/vherreros_ucm_es/Edx2L-n2yodGkBWokhDA7aIBYBZKemT-kntXnw1meeMtwA?e=d9bufY

Rollback logs: https://ucomplutense-my.sharepoint.com/:u:/g/personal/vherreros_ucm_es/EVGryHkh2PxKvgFsA8ydMRIBAo9vZ0DpPTJmdhdRsofLsw?e=Fuq5Uf

:)

 

0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during PREPARE_FIRST_BOOT operation

I WANT INSTALL WINDOWS 10 I BUY A KEY CODE ONLINE ON EBAY ..SAYS A0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during PREPARE_FIRST_BOOT operationND

 

0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during PREPARE_FIRST_BOOT operation

0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during PREPARE_FIRST_BOOT operation.

I have tried everything. The latest error is

0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during PREPARE_FIRST_BOOT operation.

I have dropboxs links.

Windows update log; Dropbox - Link not found

setupact.log link; Dropbox - Link not found

setuperr.log link; Dropbox - Link not found

I don't understand these but I have been having this problem for a long time now and could never install 1809 so I thought 1903 would maybe work but it don't.

I tried Windows 10 ISO and that didn't work. I did the Update Assistant 3 times and that got me the closest. I have deleted all the files they said to delete and retry and nothing works. I have been working on this for months.

Also I am obviously not a computer tech so I need the steps explained.

 

0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during PREPARE_FIRST_BOOT operation

I have tried everything. The latest error is

0x80004005-0x1000A The installation failed in the DOWNLEVEL phase with an error during PREPARE_FIRST_BOOT operation.

I have a dropbox link to the Windows update log

Dropbox - Link not found

I don't understand it but I have been having this problem for a long time now and could never install 1809 so I thought 1903 would maybe work but it don't.