How to make the Partion Letter for my memeory stick static ?

Hello Guys,

I've got a memory stick, and I want to keep the partion letter constant anywhere I use my memory stick, for example whenever I insert my memory stick in any computer, I want to get the letter T: , so if my memory stick had the folder called 'example'. this folder will always be T:\example\

Now, that question was asked on Experts Exchange before, https://www.experts-exchange.com/questions/26722200/How-to-fix-the-drive-letter-of-a-portable-hard-disk-or-usb.html , upon the answers, I made these 2 files and put them in the root folder of my memory stick.

autorun.inf

[autorun]
label=MH Memory
Action=Check USB Drive on T
shellexecute=drived.cmd

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DRIVED.CMD

SET USBDRIVE=T
SET CURRENTDRIVE=%~d0
SET WRONGVOLUME=
SET CURRENTVOLUME=

IF /i "%CURRENTDRIVE:~0,1%" == "%USBDRIVE%" EXPLORER.EXE /ROOT,%~d0\

CD /d %temp%

ECHO list volume>diskpart.txt

for /f "tokens=2" %%a in ('diskpart /s diskpart.txt ^| FIND /i " %CURRENTDRIVE:~0,1% "') do Set CURRENTVOLUME=%%a
for /f "tokens=2" %%a in ('diskpart /s diskpart.txt ^| FIND /i " %USBDRIVE% "') do Set WRONGVOLUME=%%a

DEL DISKPART.TXT
IF Defined WRONGVOLUME (
    echo SELECT VOLUME %WRONGVOLUME% >>DISKPART.TXT
    echo REMOVE LETTER=%USBDRIVE% >>DISKPART.TXT
)

echo SELECT VOLUME %CURRENTVOLUME% >>DISKPART.TXT
echo ASSIGN LETTER=%USBDRIVE% >>DISKPART.TXT

IF Defined WRONGVOLUME (
    echo SELECT VOLUME %WRONGVOLUME% >>DISKPART.TXT
    echo ASSIGN LETTER=%CURRENTDRIVE:~0,1% >>DISKPART.TXT
)
DISKPART /s DISKPART.TXT
DEL /q DISKPART.TXT

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They work fine on my laptop, the problem is it doesn't work in public pc's where I don't have admin privileges, is there some way to overcome this problem? I desperately need to fix this issue, i.e. when double-clicking driver.cmd it doesn't change the drive letter at all in public pc's :(

Please Help