I created a USB flash drive Home windows 25H2 installer for my 21.5-inch, Mid-2011 iMac (mannequin Identifier: iMac12,1). See the part beneath titled "How I Created USB Flash Drive Installer" for the steps used. When UEFI booting from the flash drive, I’m met with the next error message.
Home windows 11 Setup
Home windows set up encountered an surprising error. Error code: 0xD000A000 – 0x40031
Beneath is a screenshot exhibiting the error message.
Choosing the Shut button causes the Mac to restart.
I’ve the next questions.
- What’s inflicting this error message?
- What will be accomplished to forestall the window with this error message from showing?
How I Created USB Flash Drive Installer
I used my 2011 iMac to create the Home windows 11 25H2 USB flash drive installer. The working system is macOS Excessive Sierra 10.13.6, and the online browser is Firefox 115.30.0esr. The steps employed are given beneath.
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I downloaded the English (United State) Home windows 11 25H2 ISO file for x64 gadgets from the Microsoft Obtain Home windows 11 web site. The title of the downloaded file was
Win11_25H2_English_x64.iso. -
I downloaded Boot Camp Assist Software program 5.1.5621. This obtain must be the identical as discovered through the use of the macOS Excessive Sierra Boot Camp Assistant software on this Mac to obtain the Home windows Assist Software program. After downloading, I used the Finder software to unzip the obtain to the
BootCamp5.1.5621folder. -
I used the Finder software to repeat the contents of each downloads to an MBR partitioned, ExFAT formatted USB flash drive named
Win11_25H2. Subsequent, I renamed the fileAutoUnattend.xmlwithin the root listing of this flash drive toNoAutoUnattend.xml.
Beneath is a Finder software view of the recordsdata and folders within the root folder of this flash drive.


