Customizing Windows 365 Cloud PC Image Source

MD-102 By islever Editorial Last updated

Short answer

B Change the disk format to VHD to ensure compatibility with Windows 365 Cloud PC custom image uploads.

Question

You have a Microsoft 365 subscription that has Windows 365 Enterprise licenses. You plan to use a custom Windows 11 image as a template for Cloud PCs. You have a Hyper-V virtual machine that runs Windows 11 and has the following configurations: • Name: VM1 • Disk size: 64 GB • Disk format: VHDX • Disk type: Fixed size • Generation: Generation 2 You need to ensure that you can use VM1 as a source for the custom image. What should you do on VM1 first?
  1. Change the disk type to Dynamically expanding.
  2. Change the disk format to the VHD. Correct Answer
  3. Change the generation to Generation 1.
  4. Increase the disk size.

Key Takeaways

The exam tests knowledge of specific supported formats for Windows 365 custom images. The common trap is assuming modern formats like VHDX or Generation 2 features are universally required, whereas Windows 365 has specific legacy constraints.

This question addresses the requirements for creating a custom Windows 11 image for Windows 365 Cloud PCs. It establishes that the virtual hard disk format must be VHD rather than VHDX to ensure compatibility with the upload process.

Common mistake: Candidates often select option A (Dynamically expanding) because it is a general best practice for efficiency, but this does not address the primary format incompatibility issue which prevents the upload entirely.

Expert Analysis

Why the Answer Is Correct

To use a Hyper-V VM as a source for a Windows 365 custom image, the virtual hard disk must be in the .VHD format. Although the VM uses Generation 2 and VHDX, Microsoft's documentation for Windows 365 specifically requires converting the disk to VHD before uploading. This ensures compatibility with the backend infrastructure used to provision Cloud PCs.

Why the Other Options Are Wrong

Option A is incorrect because while dynamically expanding disks are efficient, they do not solve the fundamental format incompatibility. Option C is wrong because Generation 2 is supported and preferred for modern OSes, provided the disk format is correct. Option D is unnecessary as 64GB is generally sufficient for a base Windows 11 image, and increasing size does not fix the format error.

Community Comment Notes

Community consensus strongly supports B. Users noted that "VHDX is not supported" and referenced official Microsoft learn pages confirming VHD is the required format. One user mentioned generation 2 support issues, but clarified that the disk format is the critical blocker.

Official Reference

https://learn.microsoft.com/en-us/windows-365/dev/prepare-custom-image

This link opens the official vendor documentation in a new tab.

Exam Strategy

Memorize the specific technical constraints for Windows 365 custom images. When dealing with 'upload' or 'source' questions for this service, always check if the disk format needs to be converted to VHD, regardless of whether the VM is Gen 1 or Gen 2.

Frequently Asked Questions

Why is VHDX not supported for Windows 365?

Windows 365 provisioning infrastructure currently requires the legacy VHD format for custom images to ensure broad compatibility during the upload and conversion process.

Can I use a Generation 2 VM for Windows 365?

Yes, you can use a Generation 2 VM, but you must still convert its disk from VHDX to VHD format before uploading it as a custom image.

More MD-102 FAQ →

Community Votes

B
100%

100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 8 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 8

  1. CaTa_LySt 👍 6
    To use VM1 as a source for the custom Windows 11 image on Windows 365, you should choose option B. Change the disk format to VHD. Microsoft 365 Windows 365 Cloud PCs typically use VHD (Virtual Hard Disk) format for virtual machine images. Therefore, converting the disk format from VHDX to VHD is necessary for compatibility.
  2. CJL324 👍 3
    B. Change the disk format to VHD. The VHDX format is not supported for creating custom images in Windows 365; it must be converted to VHD format. This will ensure that the custom image can be uploaded and used within the Windows 365 environment.
  3. Darkfire 👍 3 Answered B
    I think B based on: https://learn.microsoft.com/en-us/azure/virtual-machines/generation-2#:~:text=Is%20VHDX%20supported%20on%20generation%202%3F%0ANo%2C%20generation%202%20VMs%20support%20only%20VHD.
  4. kiro_e 👍 2
    As of last update in January 2022, Windows 365 Cloud PCs support virtual hard disk (VHD) format for custom images. VHDX format is not explicitly mentioned as supported for Windows 365 Cloud PC custom images. Therefore, to ensure compatibility, it's recommended to convert your custom Windows 11 image from VHDX format to VHD format before using it as a template for Cloud PCs in Windows 365. So the answer could be B
  5. Meek_Learner 👍 1
    The correct answer is: a. Change the disk type to Dynamically expanding. Windows 365 requires custom images to use dynamically expanding disks. This is because dynamically expanding disks are more efficient in terms of storage usage and are supported for creating custom images in Windows 365 Enterprise. The current configuration of VM1 uses a fixed-size disk, which is not compatible with Windows 365 requirements for custom images.
Show 3 more comments
  1. Daniel_G 👍 1 Answered B
    B is correct. VHDX is not possible for custom imaging. Disk size is sufficient and does not need to by dynamically expanding. Generation is sufficient too.
  2. PrepaCertif 👍 1
    B&C https://learn.microsoft.com/en-us/azure/lab-services/upload-custom-image-shared-image-gallery
  3. Krayzr 👍 1 Answered B
    B I think not sure

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