How to assign drive letter to an unmounted physical drive

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I'm tryin to assign a drive letter to an unmounted drive using C#, but my code doesn't seem to work

What I have tried:

ManagementObjectSearcher disks = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_Volume WHERE label = 'label_name'");
                  foreach (ManagementObject disk in disks.Get())
                  {
                      disk.Get();
                      disk["DriveLetter"] = "M:";
                      disk.Put();
                  }

Posted 6-Jul-17 22:26pm

Member 13297940

Updated 6-Jul-17 22:53pm

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Patrice T · Answer 1 · 2017-07-06T22:53:00

Solution 1

Quote:
I'm tryin to assign a drive letter to an unmounted drive using C#, but my code doesn't seem to work

Probably because letters are assigned to drives when windows mount them.
So unmounted volumes have no letter.

Just curious: what is the interest to assign a letter to an unmounted volume?

Posted 6-Jul-17 22:53pm

Patrice T

Comments

Member 13297940 7-Jul-17 7:23am

I understand drive letters are not assigned to an unmounted drive, that is why i'm getting the volume label and then assigning the Drive letter.

I'm mounting this drive because i need to access it's files through my application.

Patrice T 7-Jul-17 7:47am

Why don't you just ask windows to mount the volume ?
Windows knows which letter was used by the volume last time it was mounted.