Mount ISO and change its drive letter with PowerShell - good pattern

MountISO_ChangeDrv-Good.ps1

$myISO = 'E:\ISO\Microsoft Bookshelf Basic\BSBASIC2.ISO'
Mount-DiskImage $myISO

$vol = Get-DiskImage $myISO | Get-Volume
$old_drv = $vol.DriveLetter + ':'
$new_drv = 'X:'

#WMI
#Get-WmiObject -Class Win32_Volume | Where-Object {$_.DriveLetter -eq $old_drv} | Set-WmiInstance -Arguments @{DriveLetter=$new_drv}

#CIM
Get-CimInstance -Class Win32_Volume | Where-Object {$_.DriveLetter -eq $old_drv} | Set-CimInstance -Arguments @{DriveLetter=$new_drv}