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lore_lol_lipop
Copper Contributor
Oct 01, 2021

WINDOWS 11 ISO DOESN'T WORK

I'm trying to install W11 both with ISO and Windows Update and every time it ends with en error.
The common error when I try to install it with ISO is that:
error 0xC1900101 - 0X40021, installation failed in the SECON_BOOT phase with an error during the SYSPREP_SEPECIALIZE operation.
My PC is totally compatible with W11

  • I recommend you to disconnect all unnecessary external devices (USB drives, media cards etc.) and just have the keyboard and mouse. Install the latest Graphics driver update. Disable your antivirus software temporarily. Restart the computer and try again. See if this helps!

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