Windows 10: Error when attempting to upgrade to Windows 11 - 0xC1900101- 0x40021

Attempted update to Windows 11 from Windows 10 using Windows11InstallationAssistant. Upon restart of PC, gets hung up on "Working on updates" for hours stuck at 30%. Eventually I have to shut down the PC forcefully.Have already verified that my PC meets the minimum requirements, though I did have to enable TPM 2.0 via my bios prior to being allowed to upgrade.Can attach the zipped 'Panther' and 'Rollback' folders from C:\$WINDOWS.~BT\Sources, as i've seen this asked for in other posts.

:)

 

Error 0xC1900101 - 0x40021

Hello,

I'm trying to upgrade my Windows 10 to Windows 11 but I've got a blue screen with this error :
INVALID_DATA_ACCESS_TRAP

After that, when I came in Windows 10, the configuration of Windows 11 tell this error :

0xC1900101 - 0x40021 : The installation failed in the SECOND_BOOT phase with an error in the BOOT operator.

(This error occurs when I'm use the ISO file)
(I've already tried Windows 11 Installation Assistant)

Thanks

Also, I've an Ubuntu dualboot on my laptop

 

We couldn't install Windows 10: Error 0xC1900101 - 0x40021

Thanks for all that info. *Thumbs Using it, I tried to find a solution to the 0xC1900101 - 0x40021 error but was unsuccessful. I'm going to take your advice and wait for Microsoft to get its act together before attempting another 2004 upgrade.

 

error 0xC1900101 - 0x40021

• 0xC1900101 - 0x40021 the installation failed in the SECOND_BOOT phase during SYSPREP_RESPECIALIZE operation.
• I dont know how to solve this, and I wasn't able to find a solution. Im upgrading from windows 7