Release device from isolation API

Applies to:

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API description

Undo isolation of a device.


  1. Rate limitations for this API are 100 calls per minute and 1500 calls per hour.


This page focuses on performing a machine action via API. See take response actions on a machine for more information about response actions functionality via Microsoft Defender for Endpoint.


  • Full isolation is available for devices on Windows 10, version 1703.
  • Full isolation is available in public preview for all supported Microsoft Defender for Endpoint on Linux listed in System requirements.
  • Selective isolation is available for devices on Windows 10, version 1709 or later.
  • When isolating a device, only certain processes and destinations are allowed. Therefore, devices that are behind a full VPN tunnel won't be able to reach the Microsoft Defender for Endpoint cloud service after the device is isolated. We recommend using a split-tunneling VPN for Microsoft Defender for Endpoint and Microsoft Defender Antivirus cloud-based protection-related traffic.


One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Use Microsoft Defender for Endpoint APIs

Permission type Permission Permission display name
Application Machine.Isolate 'Isolate machine'
Delegated (work or school account) Machine.Isolate 'Isolate machine'


When obtaining a token using user credentials:

  • The user needs to have at least the following role permission: 'Active remediation actions' (See Create and manage roles for more information)
  • The user needs to have access to the device, based on device group settings (See Create and manage device groups for more information)

Device group creation is supported in Defender for Endpoint Plan 1 and Plan 2.

HTTP request


Request headers

Name Type Description
Authorization String Bearer {token}. Required.
Content-Type string application/json. Required.

Request body

In the request body, supply a JSON object with the following parameters:

Parameter Type Description
Comment String Comment to associate with the action. Required.


If successful, this method returns 201 - Created response code and Machine Action in the response body.

If you send multiple API calls to remove isolation for the same device, it returns "pending machine action" or HTTP 400 with the message "Action is already in progress".



Here is an example of the request.

  "Comment": "Unisolate machine since it was clean and validated"

To isolate a device, see Isolate device.


Do you want to learn more? Engage with the Microsoft Security community in our Tech Community: Microsoft Defender for Endpoint Tech Community.