create VM from Disk Error

Question

create VM from Disk Error

IT 0

I can not create VM from Disk ,error

The specified cookie value in VHD footer indicates that disk 'disk-name.vhd' with blob "blob-file-name" is not a supported VHD. Disk is expected to have cookie value 'conectix'. (Code: BadRequest)

Please help

Andreas Baumgarten 132.1K Reputation points MVP Volunteer Moderator

2026-01-08T22:03:32.74+00:00

Hi @IT ,

it's an uploaded disk you are trying to create a VM from?

If so the reason for the issue might be a "wrong/incompatible" disk size. The size must be a 1MB * N offset. This means the disk size should be dividable by 1024. For instance a disk size of 1024 MB should work. A disk size of 912 MB should not work (not dividable by 1024).

Please take a look here: Uploaded VHD is not supported when you create a VM in Azure

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards

Andreas Baumgarten
IT 0 Reputation points

2026-01-08T22:23:01.4933333+00:00

Hi Andres,

I exported from AWS EC2 and is in Blob container, I was able to run it from Hyper-V local system ,but no luck in Azure.I tried 10 times so far.
IT 0 Reputation points

2026-01-08T22:24:33.59+00:00

Hi Ankit,

I have tried 10 times ,no luck ,I was able to run it in Hyper-V no issue,this exported from AWS EC2
Ankit Yadav 14,455 Reputation points Microsoft External Staff Moderator

2026-01-08T22:36:18.94+00:00

Thank you for confirmation, rest assured I'm here to assist you further with the issue.

I've reached out to you over Private Message, kindly review and share the asked details.
IT 0 Reputation points

2026-01-09T21:11:37.5866667+00:00

Please tell me where I can find message
IT 0 Reputation points

2026-01-09T21:17:01.4533333+00:00

Done,created

please help to solve this issue ,it is very important because I exported from AWS and want to run in Azure,so far no luck
Ankit Yadav 14,455 Reputation points Microsoft External Staff Moderator

2026-01-19T23:47:29.2466667+00:00

Hey @IT

Good day!

Just checking in if you are still blocked with the issue.

If yes, I've reached out to you via Private Message requesting some details related to your subscription to ensure your privacy is protected. Please review and share those details so that we can check further on the issue.

1 answer

Your answer

Andreas Baumgarten 132.1K Reputation points MVP Volunteer Moderator

2026-01-08T22:03:32.74+00:00

Hi @IT ,

it's an uploaded disk you are trying to create a VM from?

If so the reason for the issue might be a "wrong/incompatible" disk size. The size must be a 1MB * N offset. This means the disk size should be dividable by 1024. For instance a disk size of 1024 MB should work. A disk size of 912 MB should not work (not dividable by 1024).

Please take a look here: Uploaded VHD is not supported when you create a VM in Azure

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards

Andreas Baumgarten
IT 0 Reputation points

2026-01-08T22:23:01.4933333+00:00

Hi Andres,

I exported from AWS EC2 and is in Blob container, I was able to run it from Hyper-V local system ,but no luck in Azure.I tried 10 times so far.
IT 0 Reputation points

2026-01-08T22:24:33.59+00:00

Hi Ankit,

I have tried 10 times ,no luck ,I was able to run it in Hyper-V no issue,this exported from AWS EC2
Ankit Yadav 14,455 Reputation points Microsoft External Staff Moderator

2026-01-08T22:36:18.94+00:00

Thank you for confirmation, rest assured I'm here to assist you further with the issue.

I've reached out to you over Private Message, kindly review and share the asked details.
IT 0 Reputation points

2026-01-09T21:11:37.5866667+00:00

Please tell me where I can find message
IT 0 Reputation points

2026-01-09T21:17:01.4533333+00:00

Done,created

please help to solve this issue ,it is very important because I exported from AWS and want to run in Azure,so far no luck
Ankit Yadav 14,455 Reputation points Microsoft External Staff Moderator

2026-01-19T23:47:29.2466667+00:00

Hey @IT

Good day!

Just checking in if you are still blocked with the issue.

If yes, I've reached out to you via Private Message requesting some details related to your subscription to ensure your privacy is protected. Please review and share those details so that we can check further on the issue.

Answer 1

Hello @IT ,

Thank you for sharing the detailed error for your VM creation failure.

Based on the error message provided, it appears that the issue is caused by a missing cookie value in the VHD footer, which leads to the VHD file being unsupported. To resolve this, you will need to re-create the image and then submit the VM creation request again.

User's image

Source: https://docs.azure.cn/en-us/partner-center/marketplace/azure-vm-certification-faq#vm-provisioning-issue

I do understand the same VHD is running fine in Hyper-V however there are certain requirements to be met for a Windows VM VHD in Azure, therefore kindly retry 1 more time following these steps to create the VHD file in Amazon EC2 and then try to create VM using that VHD file in Azure and let us know if that also fails.

Additional reference:

Please let me know if this helps for your question, otherwise please share the details asked in Private Message so that we can check further on the issue.

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create VM from Disk Error

1 answer

Your answer