Windows Change Drive Letter Assignments in command prompt

anyone know how to change the drive letter assignments in command prompt? especially the Windows repair command prompt?

i have managed to move ProgramData and User folders away from SSD onto a hard drive and connected using JunctionPoints. but problem is i can only connect wherever the command prompt puts the partition. if the partition has been assigned to say F for example, i use mklink to link to F, and then in Windows, i cannot change the partition letter to, say T.

in short, i need a tool (be it downloaded run via browse to its directory or built-in) to change the drive letter assignment of partitions in command prompt, in install disk recovery mode.

 

Does "Mountvol" work in recovery console mode?

I know it allows you to mount a drive to a folder in normal command prompt, unsure if it works as part of the windows recovery console commands, as I understand the commands are limited.

Code:

C:\>mountvol
Creates, deletes, or lists a volume mount point.

MOUNTVOL [drive:]path VolumeName
MOUNTVOL [drive:]path /D
MOUNTVOL [drive:]path /L

    path        Specifies the existing NTFS directory where the mount
                point will reside.
    VolumeName  Specifies the volume name that is the target of the mount
                point.
    /D          Removes the volume mount point from the specified directory.
    /L          Lists the mounted volume name for the specified directory.

Possible values for VolumeName along with current mount points are:

    \\?\Volume{a37d46c0-8ccf-11d9-bc6a-806d6172696f}\
        C:\

    \\?\Volume{10af0460-742e-11dd-8d24-806d6172696f}\
        D:\

    \\?\Volume{f8174052-b2ae-11db-bd00-00065ba293da}\
        E:\

    \\?\Volume{a37d46c2-8ccf-11d9-bc6a-f28d50394b38}\
        A:\

C:\>

Example... I wish to mount the extra volume to the folder c:\mount\driveX

Code:

c:
cd\
cd mount
mountvol driveX \\?\Volume{f8174052-b2ae-11db-bd00-00065ba293da}\

Example... I wish to remove this extra volume from the mount path of c:\mount\driveX

Code:

c:
cd\
cd mount
mountvol c:\mount\driveX /D

 

i thought mountvol is for mounting a partition to a folder path.

i want to just change the drive letters, nothing to do with the folder path.

 

Would "subst" do the trick for you? E.g. "subst B: C:\" assigns the root folder of C:\ to "drive" B:.

 

hum, looks like subst is the answer.

Code:

subst t: f:\

makes a T drive letter and inside are all the stuff of F, so i can then do the Junction Point linking. although note to self: assign the letters in Windows FIRST otherwise when restart back will find unable to even log-on (had this happen, "no user profile" and will be stuck on log-on screen. )

thanks for the awesome response speed.

 

Glad to be able to help out.