List Windows Disk with Boot Disk First

GetWinDisks.ps1

# Empty Array to hold disks in boot disk always first order.
$disks = @()

# Identify the boot partition
$bootPartition = Get-WmiObject -Class Win32_DiskPartition |
	Where-Object {$_.BootPartition}

# Identify the boot disk using the boot partition
$bootDisk = Get-WmiObject -Class Win32_DiskDrive |
	Where-Object {$_.Index -eq $bootPartition.DiskIndex} |
	Select-Object -ExpandProperty DeviceID

# Add boot disk as first item in array
$disks += $bootDisk

# Add remaining disks to array excluding the boot disk
$disks += Get-WmiObject -Class Win32_DiskDrive |
	Select-Object -ExpandProperty DeviceID |
	Where-Object {$_ -ne $bootDisk} |
	Sort-Object -Unique
	
$disks