# Set CD/DVD Drive to A: $cd = $NULL $cd = Get-WMIObject -Class Win32_CDROMDrive -ComputerName $env:COMPUTERNAME -ErrorAction Stop if ($cd.Drive -eq "D:") { Write-Output "Changing CD Drive letter from D: to A:" Set-WmiInstance -InputObject ( Get-WmiObject -Class Win32_volume -Filter "DriveLetter = 'd:'" ) -Arguments @{DriveLetter='a:'} }
# Set CD/DVD Drive to A: Get-WmiObject -Class Win32_volume -Filter 'DriveType=5' | Select-Object -First 1 | Set-WmiInstance -Arguments @{DriveLetter='A:'}