Stop and quarantine file API

Applies to:

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If you are a US Government customer, please use the URIs listed in Microsoft Defender for Endpoint for US Government customers.


For better performance, you can use server closer to your geo location:


API description

Stop execution of a file on a device and delete it.


  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.


You can only take this action if:

  • The device you're taking the action on is running Windows 10, version 1703 or later, or Windows 11
  • The file does not belong to trusted third-party publishers or is not signed by Microsoft
  • Microsoft Defender Antivirus must at least be running on Passive mode. For more information, see Microsoft Defender Antivirus compatibility.


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.StopAndQuarantine 'Stop And Quarantine'
Application Machine.Read.All 'Read all machine profiles'
Application Machine.ReadWrite.All 'Read and write all machine information'
Delegated (work or school account) Machine.StopAndQuarantine 'Stop And Quarantine'


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.
Sha1 String Sha1 of the file to stop and quarantine on the device. Required.


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



Here is an example of the request.

  "Comment": "Stop and quarantine file on machine due to alert 441688558380765161_2136280442",
  "Sha1": "87662bc3d60e4200ceaf7aae249d1c343f4b83c9"


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