How to make bat file listing with options to choose

I want to make a bat file that lists all of the files in a specific directory, and adds numbers at the beginning of the every one of the listed items. This numbers need to be a selectable options.

Example: I have a folder with 5 files in it, aaa.exe, bbb.exe, ccc.exe, ddd.exe, eee.exe. When I run bat file I need to see

aaa.exe

bbb.exe

ccc.exe

ddd.exe

eee.exe

So now if I want to run 5-th exe I need to press 5, than press enter and that 5th exe will now start.

I already found how to list all of the items in folder with this code

REM -start "c:\windows\system32" notepad.exe 
for /r %%i in (*) do echo %%i
pause
exit

but I can't figure out how to add numbers in front of the text and make those numbers to be a selectable options.

Edit---

Now I'm getting

ERROR: Duplicate choices are not allowed. running '""' is not recognized as an internal or external command, operable program or batch file.

when I'm trying to run this loop for a second time.

This is code that I wrote:

@ECHO OFF
setlocal enabledelayedexpansion


REM ---Prompt part
:choise
SET /P AREYOUSURE=Install programs (Y/[N])?  
IF /I "%AREYOUSURE%" EQU "Y" GOTO :chooseInstall
IF /I "%AREYOUSURE%" EQU "N" GOTO :nope

REM --Cheking for Y or N
GOTO :choise

:nope
echo "Ok. Have a nice daty / night"
pause
exit



:chooseInstall
echo Which program do you want to install?
echo.
echo 1. 7Zip
echo 2. CPU Z
echo.

SET /P AREYOUSURE=Choosing: 
IF /I "%AREYOUSURE%" EQU "1" set "pathToSoft=C:\Users\usr\Desktop\hello"
IF /I "%AREYOUSURE%" EQU "2" set "pathToSoft=C:\Users\usr\Desktop\bye"


echo.
echo.

echo %pathToSoft%

echo.
echo.


REM ---Installs
echo "Which file to install"

cd %pathToSoft%
echo.
echo.



REM --Loops that scan files

set /A counter=0


for /R %%i in (*) do (

if not "%%~nxi" == "%~nx0" (
    set /A counter+=1
    echo !counter!: %%~nxi
    set exe[!counter!]=%%i
    set choice=!choice!!counter!
    )
)

if %counter% LSS 10 (
choice /C %choice% /M "Choose: "
set EXENUM=!ERRORLEVEL!
) else set /P EXENUM="enter exe number: "


set EXECUTABLE=!exe[%EXENUM%]!
echo running %EXECUTABLE%
call "%EXECUTABLE%"

echo.
echo.
echo.





:installmore
SET /P INSTALLMORE=Do you want to install something else (Y/[N])?  
IF /I "%INSTALLMORE%" EQU "Y" GOTO :chooseInstall
IF /I "%INSTALLMORE%" EQU "N" GOTO :nope

Solution

count the executables and associate them with the counter, creating kind of "array" variables (filter out the current batch script)
build the choice list at the same time
after the loop, use choice if no more than 9 choices, else use a classical interactive set
retrieve the user selection and call the executable/batch file

(you have to enable delayedexpansion to be able to use % and ! env. var separators & instant evaluation within the loop)

can be done like this:

@echo off

setlocal enabledelayedexpansion

set /A counter=0
set choice=

for /R %%i in (*) do (

if not "%%~nxi" == "%~nx0" (
set /A counter+=1
echo !counter!: %%~nxi
set exe[!counter!]=%%i

set choice=!choice!!counter!
)
)

if %counter% LSS 10 (
choice /C %choice% /M "type exe number"
set EXENUM=!ERRORLEVEL!
) else set /P EXENUM="enter exe number: "


set EXECUTABLE=!exe[%EXENUM%]!
echo running %EXECUTABLE%
call "%EXECUTABLE%"