When you deploy a new virtual machine, for example Windows Server 2016/2019 or 2022, you’ll get the C: drive with the operating system, the D: drive for the TEMP storage (most of the VM types) and a DVD drive.
The DVD drive is not needed in some situations, for example on domain controllers. This type of servers you want to harden the security as much as possible. So, for domain controllers we’re deploying in our customer environments, we want to disable the DVD drive.
We run the following command when deploying new domain controllers in Azure.
## Disable DVD drive
Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\cdrom -Name Start -Value 4 -Type DWord
After this step, reboot the server and your DVD drive is gone!