Drive Space Information PowerShell Script

# Get-DriveSpaceInfo.ps1
# This script retrieves space information for each local drive (DriveType=3) on the computer.
# It displays the drive letter, total size, free space, used space, and percentage of free space.

# Retrieve local disk drives (DriveType=3 indicates local fixed disks)
$drives = Get-CimInstance -ClassName Win32_LogicalDisk -Filter "DriveType=3"

if (!$drives) {
    Write-Host "No local drives found."
    exit
}

foreach ($drive in $drives) {
    $driveLetter = $drive.DeviceID
    $totalSize = $drive.Size
    $freeSpace = $drive.FreeSpace

    # Calculate used space and percentage of free space (if total size is not zero)
    if ($totalSize -gt 0) {
        $usedSpace = $totalSize - $freeSpace
        $percentFree = [Math]::Round(($freeSpace / $totalSize) * 100, 2)
        $totalSizeGB = [Math]::Round($totalSize / 1GB, 2)
        $freeSpaceGB = [Math]::Round($freeSpace / 1GB, 2)
        $usedSpaceGB = [Math]::Round($usedSpace / 1GB, 2)
    }
    else {
        $usedSpace = 0
        $percentFree = 0
        $totalSizeGB = 0
        $freeSpaceGB = 0
        $usedSpaceGB = 0
    }

    Write-Host "Drive: $driveLetter" -ForegroundColor Cyan
    Write-Host "  Total Size: $totalSizeGB GB"
    Write-Host "  Free Space: $freeSpaceGB GB ($percentFree`%)"
    Write-Host "  Used Space: $usedSpaceGB GB"
    Write-Host "-------------------------------------"
}