public static bool Unmount(IntPtr hdc)
{
if (!FileSystem.mounted.Contains(hdc))
{
throw new InvalidOperationException("Not mounted");
}
var drive = (IDriveProvider)FileSystem.mounted[hdc];
FileSystem.mounted.Remove(hdc);
DriveInfo.DeregisterDriveProvider(drive);
return(FileSystem.Uninitialize(hdc));
}