Windows Setup automatically searches for answer files named autounattend.xml in the root of removable media. Using this file allows you to bypass the Out-of-Box Experience (OOBE), automate partitioning, and apply tweaks without modifying the original Windows image.

Method 1: Physical Hardware (USB)

Configure your settings in the generator and click Download .xml.
Create a standard bootable Windows USB installer (using Microsoft Media Creation Tool or Rufus).
Copy the downloaded autounattend.xml file to the root directory of that USB drive (e.g., D:\autounattend.xml).
Boot the computer from the USB drive. Windows Setup will detect the file and proceed automatically.

Method 2: Virtual Machines

The "Two-Disk" Strategy: VMs cannot easily read files from your host computer during boot.
Simply click the Download ISO button to get an autounattend.iso file. Mount this as a second CD/DVD drive in your VM alongside the Windows Installer ISO.

VMware Workstation

Create your VM, selecting "I will install the operating system later".
Edit VM Settings. Put the standard Windows ISO in the first CD/DVD drive.
Click Add... -> CD/DVD Drive.
Select "Use ISO image file" and browse to your autounattend.iso.
Power on the VM.

Oracle VirtualBox

Create your VM. Important: Check "Skip Unattended Installation" in the summary to prevent VirtualBox from using its own defaults.
Go to Settings -> Storage.
Next to the Controller, click the Add Optical Drive icon.
Select your autounattend.iso.
Start the VM.

Proxmox VE

Upload autounattend.iso to your Proxmox ISO storage.
Create a VM. Attach the Windows ISO to the CD/DVD drive.
After creation, go to Hardware -> Add -> CD/DVD Drive.
Select your autounattend.iso.
Ensure Boot Order prioritizes the Windows Installer, then start.

Hyper-V

Create your VM (Generation 2 recommended).
Go to Settings.
Under SCSI Controller, select DVD Drive and click Add.
Image file: Browse to autounattend.iso.
Start the VM.

Parallels Desktop

Create VM -> "Install Windows... from a DVD or image file".
Uncheck "Express Installation" if prompted.
Go to Hardware settings.
Click (+) -> CD/DVD.
Connect to autounattend.iso.

Troubleshooting & Log Files

The answer file works with standard Microsoft ISOs (Windows 10/11, including 24H2). If the installation fails or stops unexpectedly, you can debug it by pressing Shift + F10 during setup to open a Command Prompt and checking these logs:

Stage	File Path	Purpose
Boot (WinPE)	X:\Windows\setupact.log	Check this if your `autounattend.xml` is ignored entirely.
Disk/Partition	X:\diskpart.log	Contains output from the drive wiping/formatting script.
Installation	C:\Windows\Panther\setupact.log	Errors occurring after the first reboot (OOBE).
Custom Scripts	C:\Windows\Setup\Scripts\*.log	Output from your PowerShell scripts, user creation, and bloatware removal.

Rufus Users: If creating a USB with Rufus, do not use its "Extended Windows User Experience" options (like bypassing TPM or creating a local account). Rufus injects its own answer file that conflicts with this one.

Manual Editing: If editing the XML manually, save it as UTF-8 (No BOM). Avoid raw special characters; use XML entities (e.g.,  ) to prevent parsing errors.

Reverting Customizations

Some "Advanced" tweaks modify the registry or scheduled tasks. To restore default Windows behavior, run the corresponding command in an Administrator PowerShell window.

Re-enable UAC (User Account Control)

powershell

Set-ItemProperty -LiteralPath 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System' -Name 'EnableLUA' -Value 1 -Type 'DWord'; Restart-Computer;

Restore Win11 Modern Context Menu

powershell

Remove-Item -LiteralPath 'Registry::HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32'; Stop-Process -Name explorer;

Reset NumLock/Capslock Behavior

powershell

Remove-ItemProperty -LiteralPath 'Registry::HKLM\SYSTEM\CurrentControlSet\Control\Keyboard Layout' -Name 'Scancode Map'; Write-Host 'Reboot required';

Reset Tray Icon Visibility

powershell

Get-ScheduledTask -TaskName 'ShowAllTrayIcons' -ErrorAction SilentlyContinue | Unregister-ScheduledTask -Confirm:$false;

Enable 'Manage Devices' in Settings

powershell

Set-ItemProperty -LiteralPath 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CloudContent' -Name 'DisableWindowsConsumerFeatures' -Value 0 -Type 'DWord';

Reset Execution Policy

powershell

Set-ExecutionPolicy -Scope 'LocalMachine' -ExecutionPolicy 'Undefined' -Force;

Security Considerations

Sensitive Data Warning: The generated XML contains passwords (User accounts, Wi-Fi) in plain text.

Windows Setup caches the answer file to C:\Windows\Panther\unattend.xml.
If you configured Wi-Fi, the profile is often stored at C:\Windows\Setup\Scripts\Wifi.xml.

Our generator includes scripts to attempt deletion of these files, but you should verify they are gone before sharing the machine image.

Generate Autounattend.xml for Windows 11, 10 & Server

Target Windows Version

Quick Configuration

Region & Product

Licensing

How to use autounattend.xml

Method 1: Physical Hardware (USB)

Method 2: Virtual Machines

VMware Workstation

Oracle VirtualBox

Proxmox VE

Hyper-V

Parallels Desktop

Troubleshooting & Log Files

Reverting Customizations

Security Considerations

Actions