Windows 10: Upgrading to Windows 11 Error code 0xa0000400

So after downloading the Windows11 installation Assistant and finding out my pc is eligible to upgrade, whenever i press Accept and Install it brings up "Something Went wrong""Select try again, and if it doesnt work Contact Microsoft Support help"Error code 0xa0000400I press try again and then the same thing happens again,What should i do help

:)

 

Error of 0xa0000400 updating windows7 to Windows 10.

Hi Alex,

It's unfortunate that you are facing this issue. We'll certainly assist you to resolve it.

Share this information to assist you better.

• How are you upgrading to Windows 10? Is it through Windows update or ISO media?

We suggest you to refer the suggestions given by Andre Da Costa from the below link and check if it helps:

http://answers.microsoft.com/en-us/...a0000400/7ff8a9cc-45df-4d8e-b138-0cb3e5deed72

http://answers.microsoft.com/en-us/...x00704dd/2b4a8592-4002-4561-b1c7-ab9c09c36aeb

Reference : How to Fix Windows 10 Setup Failure:

http://answers.microsoft.com/en-us/...-failure/eba3c864-d9fe-4f8e-9468-81b1f89473ed

Hope this helps, for further assistance, you can post your query in Microsoft Community

 

Windows 10 upgrade error 0xa0000400

Hi Sheetal,

As per the provided screenshot, I would like you to provide the information stated below:

1. When you state industry pro 8.1, do you mean Windows 8.1 Enterprise?

2. Are you trying to install Windows 10 enterprise or other version?



For now, I suggest that you refer to the post provided in the link below and check if it helps rectify the issue

http://answers.microsoft.com/en-us/...ading-my/86f29ff9-3e88-4bd5-9380-b4f925eb4f78

Hope this helps

Regards

 

Windows 10 version 2004 upgrade fails with error 0xA0000400

On (only) one of my home systems, attempting to upgrade to version 2004 (using the Upgrade tool Windows10Upgrade9252.exe) fails (after reporting CPU, memory, and disk space are OK) with error 0xA0000400.

This error code doesn't seem to be documented anywhere.

Any clue?