Question

I have a txt file with volume id’s in it.

I need to get drive info (drive letter, drive size, etc.) from the drive volume id (Windows):

the volume id is in the following format:

\\?\Volume{XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}

The drive can be Removable/local disk

It doesn’t matter how the info is retrieved (it could be script, cpp ,c#, java code).

EDIT:

I tried to use DriveInfo, Win32_LogicalDisk, Win32_Volume, Win32_PnpDevices – but I couldn’t find this weird id… in all cases the id has a differrent format

UPDATE:

Found out how to do it.

you can enumerate Win32_Volume like this:

ManagementObjectSearcher ms = new ManagementObjectSearcher("Select * from Win32_Volume");    
foreach(ManagementObject mo in ms.Get())   
{
    var guid = mo["DeviceID"].ToString();

    if(guid == myGuid)
        return mo["DriveLetter"];
}

Answer 1

Volume size, etcetera is easy. Just use the normal Win32 methods. Any function that accepts "C:" as a drive will also accept the volume GUID path (because that’s what a \\?\Volume{XXX} is properly called).

The “drive letter” is a bit trickier as there may be 0, 1 or more drive letters. You need to call FindFirstVolumeMountPoint / FindNextVolumeMountPoint / FindVolumeMountPointClose to get all of them.