Instances created from Windows Server 2016 and later Amazon Machine Images (AMIs) use the EC2Launch service for a variety of startup tasks, including initializing EBS volumes. By default, EC2Launch does not initialize secondary volumes. You can configure EC2Launch to initialize these disks automatically.

To map drive letters to volumes

1. Connect to the instance to configure and open the C:\ProgramData\Amazon\EC2-Windows\Launch\Config\DriveLetterMappingConfig.json file in
a text editor.

2. Specify the volume settings using the following format:

{
  "driveLetterMapping": [
    {
      "volumeName": "sample volume",
      "driveLetter": "H"
    }
  ]
}

3. Save your changes and close the file.
4. Open Windows PowerShell and use the following command to run the EC2Launch script that initializes the disks:

 C:\ProgramData\Amazon\EC2-Windows\Launch\Scripts\InitializeDisks.ps1

To initialize the disks each time the instance boots, add the -Schedule flag as follows:

 C:\ProgramData\Amazon\EC2-Windows\Launch\Scripts\InitializeDisks.ps1 -Schedule

Take your career to new heights of success with an AWS Training