Programmatically determine Total Free Space available on your Hard Drive

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The DriveInfo.AvailableFreeSpace property indicates the amount of available free space on a drive. Here’s how to use this property to programmatically retrieve the total free space of all logical drives (including CD/DVD drives) on your machine.

C#

static void Main(string[] args)
{
    foreach (DriveInfo drive in DriveInfo.GetDrives())
    {
        try
        {
            Console.WriteLine("{0} has {1} MB free space available",
            drive.RootDirectory, (drive.AvailableFreeSpace / 1024) / 1024);
        }
        catch (IOException io)
        {
            Console.WriteLine(io.Message);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
    }
    Console.ReadLine();
}

VB.NET

Shared Sub Main(ByVal args() As String)
    For Each drive As DriveInfo In DriveInfo.GetDrives()
        Try
            Console.WriteLine("{0} has {1} MB free space available", _
drive.RootDirectory, (drive.AvailableFreeSpace \ 1024) / 1024)
        Catch io As IOException
            Console.WriteLine(io.Message)
        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try
    Next drive
    Console.ReadLine()
End Sub

OUTPUT

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About The Author

Suprotim Agarwal, Developer Technologies MVP (Microsoft Most Valuable Professional) is the founder and contributor for DevCurry, DotNetCurry and SQLServerCurry. He is the Chief Editor of a Developer Magazine called DNC Magazine. He has also authored two Books - 51 Recipes using jQuery with ASP.NET Controls. and The Absolutely Awesome jQuery CookBook.

Follow him on twitter @suprotimagarwal.