Hyper-V Issues

Question

Hello, I have been trying to use Hyper-V for a while now and I have a Virtual Machine set up in the manager. (I apologize if the tags I submitted are incorrect.) I open settings and I have set up a DVD Drive in the SCSI Controller, here is what's written there: "C:\Users\lilis\Downloads\Win11_25H2_EnglishInternational_x64.iso" (I have tried with two others also). Some changes I made in settings it that I have TMP enabled because it's apparently needed for booting Windows 11. I don't know if it matters, but I also made sure that in Firmware, the DVD Drive is on top in the list. The error messages in Virtual Machine Boot Summary I get while trying to connect: "1. SCSI DVD (0.1) The bootloader failed. 2. Network Adapter (00155D016A00) A boot image was not found. 3. SCSI Disk (0,0) The bootloader did not load an operating system."

Answer 1

Hello Szelőczey Lili

The error messages indicate that the VM is not able to boot from the ISO image. A few important points to check:

1. Use IDE Controller for Boot ISO
   1. Hyper‑V does not support booting from a DVD drive attached to the SCSI controller.
   2. Please remove the DVD drive from SCSI and add it under the IDE controller instead. This is required for booting installation media.
2. Verify ISO Integrity
   1. Confirm that the Windows 11 ISO is valid and not corrupted. You can do this by mounting it on your host system and checking that setup.exe runs.
   2. If needed, re‑download the ISO directly from Microsoft.
3. Firmware Boot Order
   1. Ensure the IDE DVD drive is at the top of the boot order in the VM’s firmware settings.
4. TPM Setting
   1. Enabling TPM is correct for Windows 11 installation, but it does not affect ISO boot. Keep it enabled for compliance.
5. Disk Configuration
   1. Make sure you have a blank virtual hard disk attached to the VM so Windows can install once the ISO boots.

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Please let me know if these steps help resolve your issue. If you find this answer helpful, kindly hit “Accept Answer” so we know your question has been addressed 🙂.

Harry.

Answer 2

It seems you are encountering issues with booting your virtual machine in Hyper-V. The error messages indicate that the virtual machine is unable to find a valid boot image from the configured devices. Here are a few steps you can take to troubleshoot this issue:

1. Verify the ISO File: Ensure that the ISO file you are using is not corrupted and is a valid Windows 11 installation image. You can try downloading the ISO again from a reliable source.
2. Check Boot Order: You mentioned that the DVD Drive is set to the top of the boot order in the Firmware settings. Double-check that this is correctly configured and that the SCSI DVD drive is indeed the first device in the boot sequence.
3. Enable Virtualization Features: Ensure that virtualization features are enabled in your BIOS/UEFI settings. This includes enabling Intel VT-x or AMD-V, which are necessary for Hyper-V to function properly.
4. Check TMP Settings: Since you have TMP enabled, make sure that it is properly configured in the BIOS/UEFI. Some systems require specific settings to be enabled for TMP to function correctly.
5. SCSI Controller Configuration: Ensure that the SCSI controller is properly configured and that the DVD Drive is correctly attached to it. You might also want to try using an IDE controller instead of SCSI to see if that resolves the issue.
6. Network Adapter Configuration: The error regarding the Network Adapter suggests that it may not be configured correctly. Ensure that the virtual switch is set up properly and that the network adapter is connected to a valid virtual switch.

If you continue to experience issues after trying these steps, you may want to consult the Hyper-V troubleshooting documentation for further guidance.

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References:

• Troubleshoot Hyper-V installation, configuration, and operational failures
• An error occurred while attempting to start the selected virtual machine