Windows 10: 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

:)

 

Windows 10 Update Error 0xC1900101 - 0x40017

Hi,

Thank you for posting in Microsoft Community, we appreciate your interest in Windows 10.

I understand your concern with the error: 0xC1900101 - 0x40017 while upgrading to Windows 10, we will help you with this issue.

I would like to inform that this error may occur for one of the following reasons:

• Antivirus software conflicts
• Hardware conflicts
• Corrupted/ faulty driver conflicts

I suggest you to refer to the below article by Andre Da Costa, try the troubleshooting steps mentioned under:
0xC1900101 - 0x40017 error code and check if it helps.

How to: Troubleshoot common Setup and Stop Errors during Windows 10 Installation

Hope it helps. Reply to the post with an updated status of this issue for further assistance.

 

Unable to upgrade one of the system to Windows 10 Update Error 0xC1900101 - 0x20004

Thank you for the reply. I read both of those threads already.

1. Resetting BIOS. I flashed BIOS to the latest version. Currently running default settings. No change.

2. Andre da Costa brings up a list of reasons. For error 0xC1900101-0x20017 he says refer to error 0xc000021a.

2a. Regarding his troubleshooting steps for error 0xc000021a. He says to wipe the drive and switch from NTFS to GPT. This is incorrect. If this was true, then no one could update from Windows 7 to Windows 10 without a clean install. Beyond which, I updated
my first desktop from Windows 7 to Windows 10 when it was running Windows 7 on NTFS.

2b. Regarding his additional troubleshooting steps for error 0xC1900101-0x20017. He has a number of suggestions, such as disabling peripherals. I tried all of these for both .iso and USB installs. No luck.

Any other suggestions?

 

Unable to upgrade to Windows 10 (Error 0xC1900101 - 0x40017).

Hi,

I would like to inform that this error may occur for one of the following reasons:

• Antivirus software conflicts
• Hardware conflicts
• Corrupted/ faulty driver conflicts

I suggest you to refer to the below article by Andre Da Costa, try the troubleshooting steps mentioned under:
0xC1900101 - 0x40017 error code and check if it helps.

How to: Troubleshoot common Setup and Stop Errors during Windows 10 Installation

Let us know the status of the issue in regards with Windows to assist further.

Regards,

Guru Kiran