When Windows 11 setup starts, it looks for an autounattend.xml file on any connected removable media (USB or ISO). If you are using a second CD/DVD drive (CD/DVD 2) to load drivers ( $Drivers$ ) or specialized tools, the following issues can occur:
Open PowerShell as Administrator (search “PowerShell” > right-click > Run as Administrator). Run the following commands:
To see if a security program is interfering, temporarily disable your antivirus or firewall software on the host machine. After disabling it, try creating and starting the virtual machine again. Remember to re-enable your security software afterward.
# List all mounted virtual disks Get-DiskImage | Get-Volume windows 11 cannot connect unattendediso to cd dvd 2 better
If the VM has already started but cannot "see" the virtual disc, the issue might be internal to the Windows environment or the virtualization drivers. Windows 11 cannot connect unattended.iso to CD/DVD
While NVMe is better for the main hard drive, keeping the CD/DVD drive on a SATA or IDE controller is often more compatible during the bootloader stage.
Instead of having two separate ISOs (Windows + Unattended), merge them into one to avoid "Drive 2" connection errors. Use an ISO Editor : Open your official Windows 11 ISO with a tool like Inject the Answer File : Drag your autounattend.xml of the Windows ISO structure. : Save this as a new "Custom Unattended ISO". Single Drive Mount When Windows 11 setup starts, it looks for an autounattend
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The virtualization software lacks the administrator privileges required to mount multiple virtual disk images simultaneously. Comprehensive Solutions 1. Remap the Virtual Hardware
After applying one of the methods above, start the virtual machine and open the remote console. The Windows 11 setup wizard should bypass the initial language and regional selection screens automatically, proving that the autounattend.xml file was read successfully from the secondary media without triggering the connection error. To help find the exact cause, please let me know: After disabling it, try creating and starting the
Open your hypervisor’s hardware configuration panel (e.g., or Virtual Machine > Settings ). Locate the CD/DVD 2 device from the hardware list. Select the drive and click Delete or Remove .
file typically found in your VM's temporary folder or user documents. Change Boot Order