How to: Determine a Drive's Format in Visual Basic

The GetDriveInfo method provides a DriveInfo object that can be queried for information about a drive on a computer. You can use the DriveFormat property to determine the drive format. Attempting to access the property without sufficient permission throws a SecurityException exception.


Your computer might show different names or locations for some of the Visual Studio user interface elements in the following instructions. The Visual Studio edition that you have and the settings that you use determine these elements. For more information, see Visual Studio Settings.

To determine a drive's format

  • Use the DriveFormat property to determine the drive format, as illustrated in the following code.

    Dim cdrive As System.IO.DriveInfo
    cdrive = My.Computer.FileSystem.GetDriveInfo("C:\")

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