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ikonuk's avatar
ikonuk
Copper Contributor
Jul 16, 2025

Insider Preview Build 26200.5702 (Dev) update fails with c1900101 (Surface Pro 3 with Windows 10)

I have received via Windows Update Windows 11 Insider Preview Build 26200.5702 (Dev Channel) update. Before I did that, I have reset my computer (because I was having similar problems) using cloud ve...
QuinnBailey's avatar
QuinnBailey
Iron Contributor
Jul 21, 2025

Your situation involves a failed Insider Preview upgrade on a Surface Pro 3, resulting in error code 0xc1900101 and a "logonUI Exception" after attempting to switch to Windows 11. Given the device's age and current configuration, this is a complex scenario, but I can guide you through some troubleshooting steps and considerations.

  • ikonuk's avatar
    ikonuk
    Copper Contributor
    Jul 29, 2025

    Thank you very much. 

    But I have given up given the conflicting information or procedures trying to push Windows 11 (via Update for insiders) while officially stating that support is not to be provided if all requirements are not met.

    For those receiving the same error message, I am guessing that since I removed the encryption from my system disk and windows installer is failing because it is assuming the original factory encrypted ssd. I hope that Microsoft would comment on this conjecture and take corrective action if that is the case.