Nuclears, можно так:
Код:
@echo off
setlocal enableextensions enabledelayedexpansion
for %%i in (a d v) do if exist "%SystemDrive%\vols%%i" echo 1 & goto :Break1
:Break1
for %%i in (b e w) do if exist "%SystemDrive%\volm%%i" echo 2 & goto :Break2
:Break2
for %%i in (c f x) do if exist "%SystemDrive%\vold%%i" echo 3 & goto :Break3
:Break3
endlocal
exit /b 0
