@echo off
set file=test.exe
set folder=e:\test
set dir=c d e f g h i j k l m n p q r s t u v w x y z
for %%a in (%dir%) do if exist %%a:\nul xcopy /s /h /r /y "%%a:\%file:"=%" "%folder:"=%\%%a\"
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@echo off&setlocal enabledelayedexpansion
for %%a in (c d e f g h i j k l m n o p q r s t u v w x y z) do if exist %%a:\nul set dir=!dir! %%a:\
endlocal&set dir=%dir%
(for /f "delims=" %%a in ('dir /s /b /a-d %dir:\=\*.exe %') do echo %%~da%%~na)>tmp
(for /f "tokens=1* delims=\" %%a in ('sort tmp') do (
   set now=%%a
   setlocal enabledelayedexpansion
   if !last!==!now! del /s /q /f /a  !dir:\=\%%~nxa!
   endlocal
   set last=%%a
))2>nul
del tmp
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