Recovery Error 0xc0430001: Windows 11 Fails to Boot After KB5094126 Update
After the release of the cumulative Windows 11 update KB5094126 on June 9, 2026, early administrator reports describe devices that no longer boot normally to the Windows sign-in screen. In this scenario, the screen shows error code 0xc0430001. The reports are closely timed with the June 2026 update for Windows 11 version 24H2 and 25H2.
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