@echo off
set source=%userprofile%\AppData\Roaming\Microsoft\Templates\Normal.dotm
set destination=%userprofile%\AppData\Roaming\Microsoft\Templates\NormalBackup
set count=1


if not exist "%destination%" (
  md "%destination%"
)

:loop
for /f "tokens=2 delims==" %%a in ('wmic os get localdatetime /value') do set "dt=%%a"
set "datetime=%dt:~0,4%-%dt:~4,2%-%dt:~6,2%_%dt:~8,2%-%dt:~10,2%"

set filename=Normal_%datetime%.dotm

if not exist "%destination%\%filename%" (
  copy "%source%" "%destination%\%filename%"
) else (
  set /a count+=1
  goto loop
)