@echo off
rem Dump multiple registry keys to disk Registry keys to disk

set key_1_=HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
set key_2_=HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
rem set this to the lower bound of the array
set LBOUND=1

rem set this to the upper bound of the array 
set UBOUND=2

set TXTDUMP=C:\RegDump

for /l %%j in (%LBOUND%,1,%UBOUND%) do (
	
	for /f "delims== tokens=2" %%i in ('set key_%%j_') do regedit /e %TXTDUMP%%%j.txt %%i

)
pause