@echo off
REM DriveSelector - Build 120922 - http://camoy.sdf.org/
REM Please keep this notice if you add this code to your scripts. Thank you.
REM ------------------------------------------------------------------------

REM If the choice was invalid, go back to here to redraw the prompt
:menu

REM Clear screen from prvious prompt
cls

REM Clear the "choice" variable
set choice=

REM Prompt user for selection
set /p choice=Enter the letter of the drive (do not type the colon):

REM If the selection isn't a drive letter, then show error message
if not '%choice%'=='' set choice=%choice:~0,1%

REM List of vaild selections (case senseitive)
if '%choice%'=='A' goto continue
if '%choice%'=='a' goto continue
if '%choice%'=='B' goto continue
if '%choice%'=='b' goto continue
if '%choice%'=='C' goto continue
if '%choice%'=='c' goto continue
if '%choice%'=='D' goto continue
if '%choice%'=='d' goto continue
if '%choice%'=='E' goto continue
if '%choice%'=='e' goto continue
if '%choice%'=='F' goto continue
if '%choice%'=='f' goto continue
if '%choice%'=='G' goto continue
if '%choice%'=='g' goto continue
if '%choice%'=='H' goto continue
if '%choice%'=='h' goto continue
if '%choice%'=='I' goto continue
if '%choice%'=='i' goto continue
if '%choice%'=='J' goto continue
if '%choice%'=='j' goto continue
if '%choice%'=='K' goto continue
if '%choice%'=='k' goto continue
if '%choice%'=='L' goto continue
if '%choice%'=='l' goto continue
if '%choice%'=='M' goto continue
if '%choice%'=='m' goto continue
if '%choice%'=='N' goto continue
if '%choice%'=='n' goto continue
if '%choice%'=='O' goto continue
if '%choice%'=='o' goto continue
if '%choice%'=='P' goto continue
if '%choice%'=='p' goto continue
if '%choice%'=='Q' goto continue
if '%choice%'=='q' goto continue
if '%choice%'=='R' goto continue
if '%choice%'=='r' goto continue
if '%choice%'=='S' goto continue
if '%choice%'=='s' goto continue
if '%choice%'=='T' goto continue
if '%choice%'=='t' goto continue
if '%choice%'=='U' goto continue
if '%choice%'=='u' goto continue
if '%choice%'=='V' goto continue
if '%choice%'=='v' goto continue
if '%choice%'=='W' goto continue
if '%choice%'=='w' goto continue
if '%choice%'=='X' goto continue
if '%choice%'=='x' goto continue
if '%choice%'=='Y' goto continue
if '%choice%'=='y' goto continue
if '%choice%'=='Z' goto continue
if '%choice%'=='z' goto continue

REM If the selection was not vaild, show error message
echo.
echo "%choice%" is not a valid choice. Please try again.
echo.
pause

REM Send user back to prompt after error
goto Menu

REM If selection was vaild, run code from here after clearing screen of the prompt text
:continue
cls

REM Enter your custom code here, use %choice% to input selected drive letter.