Make a bat file delete sub folders with an unknown name

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batch

SO I have a uninstall bat file for my program the thing is my bat file will not delete other folders if there are sub folders inside of it. Plus I don't know the name of the sub folders so how do I make it so it will delete the files and subfolders inside of 1main folder?

Uninstall.bat

@echo off

:main
echo are you shure you want to remove backup maker?
set /p yn=(Y/N)
if %yn%== Y goto yup
if %yn%== y goto yup
if %yn%== N goto nine
if %yn%== n goto nine

:undef
echo invalid choice.
goto :main

:nine
exit

:yup
echo removing
del logs\backupdata.txt
rd backups
rd logs
del Backup_maker.bat
pause
DEL "%~f0"