AWS Mainframe Modernization Service (Managed Runtime Environment experience) is no longer open to new customers. For capabilities similar to AWS Mainframe Modernization Service (Managed Runtime Environment experience) explore AWS Mainframe Modernization Service (Self-Managed Experience). Existing customers can continue to use the service as normal. For more information, see [AWS Mainframe Modernization availability change](https://docs.aws.amazon.com/m2/latest/userguide/mainframe-modernization-availability-change.html).

# Delete an AWS Mainframe Modernization runtime environment
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Use the AWS Mainframe Modernization console to delete an AWS Mainframe Modernization runtime environment.

These instructions assume that you have completed the steps in [Set up for AWS Mainframe Modernization](setting-up.md).

## Delete a runtime environment
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If you need to delete an AWS Mainframe Modernization runtime environment, make sure that you delete any deployed applications from the environment first. You can't delete a runtime environment where applications are deployed.

**To delete an environment**

1. Open the AWS Mainframe Modernization console at [https://console.aws.amazon.com/m2/](https://console.aws.amazon.com/m2/).

1. In the AWS Region selector, choose the Region where the environment that you want to delete was created.

1. On the **Environments** page, choose the environment that you want to delete, and then choose **Actions** and **Delete environment**.

1. In the **Delete environment** window, enter `delete` to confirm that you want to delete the runtime environment, and then choose **Delete**.