How to Remove All RabbitMQ and Erlang Artifacts from Previous Installations (v13-v13.5)

Steps to Completely Remove RabbitMQ and Erlang Artifacts

Step 1: Uninstall Spirion (If Applicable)

1. Open the Control Panel.
2. Navigate to Programs and Features.
3. Select Spirion if installed, and click Uninstall.
4. Follow the prompts to complete the uninstallation.

Step 2: Uninstall Erlang OTP

1. In the Control Panel, open Programs and Features.
2. Locate Erlang OTP.
3. Click Uninstall and follow the prompts to complete removal.

Step 3: Uninstall RabbitMQ Server

1. Still within Programs and Features, locate RabbitMQ Server (e.g., version 3.12.1 or any installed version).
2. Click Uninstall.
3. Follow the prompts to finish the uninstallation.

Step 4: Remove Erlang and RabbitMQ Cookie Files

Delete the .erlang.cookie files from the following locations:

• C:\Users\[username]\.erlang.cookie
• C:\Windows\System32\config\systemprofile\.erlang.cookie

Note: Replace [username] with your actual Windows username.

Step 4: Delete RabbitMQ Application Data

1. Open File Explorer and navigate to:
   C:\Users\spirion\AppData\Roaming\RabbitMQ
2. Delete all contents in this folder.

Step 5: Remove RabbitMQ Registry Entries

1. Open the Registry Editor (regedit).
2. Navigate to:
   HKEY_LOCAL_MACHINE\SOFTWARE\Ericsson\Erlang\ErlSrv\1.1
3. Delete the entire RabbitMQ registry key under this path.

Step 5: Delete RabbitMQ Windows Service (If Present)

1. Launch Command Prompt with Administrator privileges.
2. Enter the following command and press Enter:
   sc delete RabbitMQ
   If the service does not exist, you'll see an error indicating the service doesn't exist, which is safe to ignore.

Step 6: Reboot the Machine

Restart your computer to ensure all removals and changes take effect fully.