powershellmbrguid-partition-table

Detect GPT and MBR partitions with Powershell

Is there a way to tell if a disk has a GPT or an MBR partition with powershell?

Solution

  • Using WMI

    Get-WmiObject -Query "Select * from Win32_DiskPartition WHERE Index = 0" |
  Select-Object DiskIndex, @{
    Name = "GPT";
    Expression = {$_.Type.StartsWith("GPT")}
  }

    Using Diskpart

    $a = "list disk" | diskpart

$m = [String]::Join("`n", $a) |
  Select-String -Pattern "Disk (\d+).{43}(.)" -AllMatches

$m.Matches |
  Select-Object @{
    Name = "DiskIndex";
    Expression = {$_.Groups[1].Value}}, @{
    Name = "GPT";
    Expression = {$_.Groups[2].Value -eq "*"}
  }