Can´t delete disk belonging to unexisting vm

Question

Can´t delete disk belonging to unexisting vm

CesarGonzalez 20

Hi!!!

I got two disks marked as in Reserved state, and apparently attached to a VM (the property Managed By) but the VM doesn´t exists. Therefore I want to delete these disks, however in Azure Portal it says I must unattached de disks first but this is not possible because the VM doesn´t exists. I also tried it using "Remove-AzDisk -ResourceGroupName 'RG' -DiskName 'DiskName' -Force;" it answers succeeded but does´t work, the disk still there...
Any suggestions; I´m affraid I need Microsoft engineers do it or at least change the status of the disks...

Thanks

Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-13T17:50:23.5266667+00:00

Hi CesarGonzalez,

Are you encountering any error messages like This OS disk is managed by ERPServer while trying to delete the disk?

Please check any lock is applied to a resource group where your disk is existing. If lock is available, try to delete it. https://learn.microsoft.com/en-us/cli/azure/resource/lock?view=azure-cli-latest#az-resource-lock
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-17T00:00:34.1233333+00:00

Hi CesarGonzalez,

If you could please share more details on the issue, we can easily assist you further.
CesarGonzalez 20 Reputation points

2025-06-17T12:41:43.3933333+00:00

Hi @Anusree Nashetty The thing is that the VM were deleted mistakenly, so I ask Microsoft staff for help to recover it, but they just could recover the disks. I used the disks to create a new VM. Now I want to delete the recovered disks but they appear attached to the original VM, a no existing VM, so I need to change that property or force the delete.
When I try to delete it says, the disks are attached but it´s not possible to unattached using portal or powershell... I want Microsoft assistance to delete but the support system is preventing me to put a ticket because it says there´s no problem with any disk

Tx
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-17T19:40:09.64+00:00

Hi CesarGonzalez,

Could you please check the private message and provide the details there. Thank you.
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-19T23:07:18.2433333+00:00

Hi CesarGonzalez,

You mentioned Microsoft staff helped you to recover disk, could you please tell us how they done it. Is it through Q&A platform or have you raised a Support request. Please share the ticket number here.

Thank you.
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-23T21:12:07.8133333+00:00

Hi CesarGonzalez,

Could you please check the private message and provide the details there. Thank you.
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-07-02T17:01:18.6833333+00:00

Hi CesarGonzalez,

Could you please check the private message. Thank you.

Accepted answer

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Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-13T17:50:23.5266667+00:00

Hi CesarGonzalez,

Are you encountering any error messages like This OS disk is managed by ERPServer while trying to delete the disk?

Please check any lock is applied to a resource group where your disk is existing. If lock is available, try to delete it. https://learn.microsoft.com/en-us/cli/azure/resource/lock?view=azure-cli-latest#az-resource-lock
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-17T00:00:34.1233333+00:00

Hi CesarGonzalez,

If you could please share more details on the issue, we can easily assist you further.
CesarGonzalez 20 Reputation points

2025-06-17T12:41:43.3933333+00:00

Hi @Anusree Nashetty The thing is that the VM were deleted mistakenly, so I ask Microsoft staff for help to recover it, but they just could recover the disks. I used the disks to create a new VM. Now I want to delete the recovered disks but they appear attached to the original VM, a no existing VM, so I need to change that property or force the delete.
When I try to delete it says, the disks are attached but it´s not possible to unattached using portal or powershell... I want Microsoft assistance to delete but the support system is preventing me to put a ticket because it says there´s no problem with any disk

Tx
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-17T19:40:09.64+00:00

Hi CesarGonzalez,

Could you please check the private message and provide the details there. Thank you.
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-19T23:07:18.2433333+00:00

Hi CesarGonzalez,

You mentioned Microsoft staff helped you to recover disk, could you please tell us how they done it. Is it through Q&A platform or have you raised a Support request. Please share the ticket number here.

Thank you.
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-06-23T21:12:07.8133333+00:00

Hi CesarGonzalez,

Could you please check the private message and provide the details there. Thank you.
Anusree Nashetty 5,045 Reputation points Microsoft External Staff Moderator

2025-07-02T17:01:18.6833333+00:00

Hi CesarGonzalez,

Could you please check the private message. Thank you.

Answer 1

Anusree Nashetty 5,045 Microsoft External Staff Moderator

Hi CesarGonzalez,

As discussed in our private chat, I'm glad to confirm that the issue has now been resolved for you.

As the next step, you may proceed to delete the managed disks that were attached to the deleted Virtual Machine, now that they have been successfully detached.

If you have any further queries, let me know. Could you please click on Upvote and Accept Answer on it for the benefit of community.

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Can´t delete disk belonging to unexisting vm

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