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Asked: 2026-05-10T18:09:14+00:00

Using an idea from Bob King idea I wrote the following method. It works

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Using an idea from Bob King idea I wrote the following method.

It works great on CD’s, removable drives, regular drives.

However for a floppy it always return ‘Not Available’. Any ideas?

public static void TestFloppy( char driveLetter ) {     using( var searcher = new ManagementObjectSearcher(  @'SELECT * FROM Win32_LogicalDisk WHERE DeviceID = '' + driveLetter + ':'' ) )     using( var logicalDisks = searcher.Get() ) {         foreach( ManagementObject logicalDisk in logicalDisks ) {             var fs = logicalDisk[ 'FreeSpace' ];             Console.WriteLine( 'FreeSpace = ' + ( fs ?? 'Not Available' ) );             logicalDisk.Dispose();         }     } }
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1 Answer

  1. I’m sorry that I don’t have a better answer, but I used to do the same thing (use the ManagementObjectSearcher) and found that everytime the code ran the floppy drive would do some sort of seek/init sequence.

    So instead I changed to the below and interate:

    ManagementClass comp = new ManagementClass(scope, new ManagementPath(obj), null); comp.Get(); objs = comp.GetInstances();

    I want to say this is a known bug in WMI but unfortunately the code comments don’t leave any hints 🙁

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