Finding Duplicate files in a specific directory and eliminating them - Batch - batch-file

Question

How could we find duplicated files in a certain folder and its sub-folders with also the possibility to eliminate them at the user's will?
Well, this is a way i found that this could be possible. The file and directory are not variable, are fixed and the user would have to edit the code in the program each time it wanted another file and/or another directory to work with.
I recently asked a question about my program and as promissed i would share it when it would be completed.
The program finds the duplicates in a folder and sub-folders of the directory chosen, lists them by order from ancient to the most recent one and it gives the user the choice to eliminate the files, file by file, at the user's will (telling the user which file is up to being deleted/eliminated).
Im very new to this kind of programming so if it is not the prettiest of programs im sorry, but it works and i haven't found something like this anywhere. I hope this helps someone!
#echo off
setlocal EnableDelayedExpansion
set "source_folder=C:\Desktop\Batch testes\Teste 1\Giorgio.docx"
echo Welcome to this Practice/Test Program
echo This program has the obective of finding duplicated files.
pause
echo The user will have the chance to eliminate these files if he wishes
echo There will be the identification of the oldest and the newest file
pause
echo Let us start...
pause
:aPrompt
cls
echo ========================================
echo What do you wish to do?
echo 1.Show only the duplicated files. (Clique '1')
echo 2.Show the duplicated files and eliminate them. (Clique '2')
echo 3.Exit the program (Clique '3')
choice /n /c:123 /M "Escolha uma opcao "%1
goto Alfa-%errorlevel%
:Alfa-1 A1
echo Showing the files being analysed
forfiles /P "C:\Desktop\Batch testes\Teste 1" /M Giorgio.docx /S /C "cmd /c echo #file"
echo Showing the paths of the files being analysed
forfiles /P "C:\Desktop\Batch testes\Teste 1" /M Giorgio.docx /S /C "cmd /c echo #relpath#fname"
pause
echo ===============================================================================
echo.
echo The files are set by order from the oldest (on top) to the most recent (on the bottom)
echo.
(for /f "delims=" %%a in ('dir /a-d /t:w /s /b "C:\Desktop\Batch testes\Teste 1\*Giorgio.docx"') do #echo %%~Ta %%a)
echo.
echo The oldest file is on top of the list. The most recent file is at the bottom of the list
echo.
echo=======================
echo=======================
pause
:bPrompt
echo Here are the duplicated files
echo Do you wish to leave or go back? (Type '1' to end the program, '2' to return to the previous menu)
choice /n /c:12 /M "Pick an option "%1
goto Bravo-%errorlevel%
:Bravo-1 B
echo The program will now end
pause
exit
:Bravo-2 B
echo You chose to go back
pause
goto :aPrompt
:Alfa-2 A2
echo You chose to show and eliminate the duplicated files
pause
echo Showing the files paths
forfiles /P "C:\Desktop\Batch testes\Teste 1" /M Giorgio.docx /S /C "cmd /c echo #relpath#fname"
echo Files identyfied by the the program (it serves the purpose of confirming if they are the right files)
forfiles /P "C:\Desktop\Batch testes\Teste 1" /M Giorgio.docx /S /C "cmd /c echo #file"
echo The files are set by order from the oldest (on top) to the most recent (on the bottom)
echo.
(for /f "delims=" %%a in ('dir /a-d /t:w /s /b "C:\Desktop\Batch testes\Teste 1\*Giorgio.docx"') do #echo %%~Ta %%a)
echo.
echo The oldest file is on top of the list. The most recent file is at the bottom of the list
echo You sure you want to delete the files? (Type '1' to eliminate them, '2' to not eliminate)
:cPrompt
choice /n /c:12 /M "Pick an option "%1
goto Charlie-%errorlevel%
:Charlie-1 C1
echo You chose to delete the files
echo The files will be deleted according to your decision
echo For each file it will be asked if you wish to delete it
pause
del /p /s "C:\Desktop\Batch testes\Teste 1"\*Giorgio.docx
echo The files have been deleted at your choice
pause
:dPrompt
echo Do you wish to exit the program or go back? (Type '1' to end the program, type '2' to go back to the main menu)
choice /n /c:12 /M "Pick an option "%1
goto Delta-%errorlevel%
:Delta-1 D1
echo You chose to leave. The program will shut down
pause
exit
:Delta-2 D2
echo You chose to go back to the main menu
pause
goto :aPrompt
:Charlie-2 C2
:ePrompt
echo You chose not to delete the files.
echo Do you wish to go back to the main menu or to leave? (Type '1' to go back to the main menu, '2' to leave the program)
choice /n /c:12 /M "Pick an option "%1
goto Evo-%errorlevel%
:Evo-1 E1
echo You chose to go back to the main menu
pause
goto :aPrompt
:Evo-2 E2
echo You chose to exit the program. The program will shut down now
pause
exit
:Alfa-3 A3
echo The program will shut down then
pause
exit
If by any case something is failing/giving an error, tell me and i'll fix it because i may have copied something wrong by mistake (like a typo or a missing "(", something).
( I don't know how i could share my program without using the "ask a question" function, im sorry if i broke any rules of this website)
Special thanks to Stephan that helped me previously and without him i couldn't complete the part where i set the oldest and recent file!