Windows 11 Installation Error Code: 0xC1900101 0x40021

  • Thread starter Thread starter Francesco Falo
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Francesco Falo

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I tried installing Windows 11 using ISO but I get a BSOD at the end INVALID_DATA_ACCESS_TRAP with the error:Error Code: 0xC1900101 0x40021The installation failed in the SECOND_BOOT phase with an error during SYSPREP_RESPECIALIZE operation.The windows 11 update prompt now disappeared from Settings->Windows Update, while Windows Installation Assistant and PC Health Checks still state that the PC is fully compatible. How can I solve this?

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