# Uninstall ACM for Nitro Enclaves


If you no longer want to use [AWS Certificate Manager for Nitro Enclaves](nitro-enclave-refapp.md), use the following procedure to uninstall it.

**To uninstall ACM for Nitro Enclaves**

1. Stop the web server.
   + **NGINX**

     ```
     $ sudo systemctl stop nginx
     ```
   + **Apache**

     ```
     $ sudo systemctl stop httpd
     ```

1. Stop the ACM for Nitro Enclaves service.

   ```
   $ sudo systemctl stop nitro-enclaves-acm.service
   ```

1. Uninstall ACM for Nitro Enclaves.

   ```
   $ sudo yum remove aws-nitro-enclaves-acm
   ```