[kiripanda]

Код:

@echo off
setlocal enabledelayedexpansion
set maxfiles=10
set dr="z:\perevalka"
set m=1
set n=0
for /f "delims=" %%a in ('dir "%dr%" /b/a-d') do (
   if "!n!"=="%maxfiles%" (set n=0 &set /a m+=1)
   if not exist "%~dp0name!m!" md "%~dp0name!m!"
   copy "%dr%\%%a" "%~dp0name!m!"
   set /a n+=1
)
pause